The 2-Mark Calculation Guide

Provenance (built 2026-09-29): no raw "definitive guide" to this tariff exists in ~/Downloads/FINSTO/ for WEC14 — checked directly (that folder holds WEC12/WEC11 per-tariff guides only), so this is built fresh from primary sources rather than verifying a draft. forge-exam-technique-guide.md §2 ("Section B Q7(a) — 2 marks, pure calculation") was read in full first and is not restated; this document goes one level deeper using two full mark schemes (October 2023, January 2021) and two full examiner reports (October 2023, January 2025) read directly with pdftotext -layout from ~/Downloads/home 4/ubuntu/economics_ial_u4_complete/ for this pass. content/veridian/curriculum/wec14/terms-of-trade-and-trading-blocs.ts and the-role-of-the-state.ts were checked so the percentage-vs-percentage-point mechanism is cross-referenced, not re-taught. wbs12/forge-tariff-2-mark-define.md was read for the target shape of a tariff deep-dive; WEC14's 2-mark question is a calculation, not a definition, so the content itself doesn't transfer — only the "verify a real worked example directly" method does.

#WEC14 Q7(a) — 2-Mark Calculation: Tariff Deep-Dive

#1. What the tariff actually is, verified

2 marks, Application only — confirmed directly in both mark schemes read this pass: October 2023 labels Q7(a) "Application 2" with no Knowledge component at all, and January 2021 does the same. This is the one tariff on the paper with zero AO1 knowledge credit on offer; the entire mark is earned by correct arithmetic, correctly labelled.

The internal split is not always the same shape. Two genuinely different structures were found across the two mark schemes read in full:

• October 2023 (debt-servicing payments as a proportion of national debt): one calculation, split (1) for the working — "($32.27bn / $145.25bn) x 100" — and (1) for the correct final figure, with an explicit note that the units matter: "NB Award only 1 mark for 22.22 billion... 22" — i.e. writing the raw dollar figure instead of the percentage loses the second mark even if the arithmetic that produced it was right.
• January 2021 (shares of global wealth by income group): two separate, independent calculations, each worth its own single mark — "1 mark for calculation of high-income... 1 mark for calculation of middle-income" — with its own note that a correct answer earns the mark "regardless of working" shown.

The practical implication: don't assume Q7(a) is always "one number split into method-mark plus answer-mark." Read the question stem first — if it asks for two related figures, they are very likely two independent marks, not one calculation double-checked.

#2. Real worked examples, verified directly against primary PDFs

*No January 2025 mark scheme exists in the archive used for this document — question paper and examiner report only, confirmed by directory listing — so the Jan 2025 row above is grounded in the examiner report's commentary, not a re-derived calculation, and is not presented as mark-scheme-verified in the same way as the other two rows.

#3. A genuinely repeated finding: near-identical examiner-report wording, three series, two figures

Checked directly, word for word, across the three examiner reports read for this document:

• October 2023: "It is important to use the data carefully for calculation-based questions." 70% of candidates scored full marks; 30% lost at least one.
• January 2025: "It is very important to utilise the data carefully for calculation-based questions." Also 70% full marks / 30% not.
• January 2021: "It is important to use the data carefully for calculation-based questions." 60% full marks / 40% not.

October 2023 and January 2025 share the identical 70%/30% split and near-identical sentence (only "use" vs "utilise" differs); January 2021, four years earlier, carries a different split (60%/40%) but the same core sentence. Worth stating precisely rather than smoothing into one number: this document cannot tell whether the 70%/30% figure is a fresh, independently re-measured statistic each series or a reused reporting convention — the wording is close enough to raise the question honestly, and no claim here asserts it is definitely one or the other. What is safe to state as a repeated, genuine finding across all three series checked: a real, non-trivial minority (at least 30% in two of three series read, 40% in the third) loses at least one of Q7(a)'s two marks despite it being the paper's simplest tariff, and Pearson's own recurring diagnosis is care with the data, not lack of technique.

#4. Self-mark check

• Did I show the actual calculation, not just a final number? (October 2023's mark scheme explicitly awards a mark for the working step, separately from the final figure.)
• Did I give my answer in the unit the question actually asks for — a percentage, not a raw money figure, or vice versa? (The exact trap October 2023's own NB note names.)
• If the question gives two related figures to find, did I calculate both, treating them as two separate marks rather than one calculation to double-check? (§1 above.)
• Did I check whether the source data is a percentage-point figure or a percentage figure before using it? (Cross-reference: terms-of-trade-and-trading-blocs.ts's and the-role-of-the-state.ts's percent-vs-percentage-point trap — this is the single most common cause of losing this mark, confirmed across multiple series in forge-exam-technique-guide.md §2, not re-derived here.)
• Did this calculation take more than 90 seconds? If so, write down your best current answer before moving on — 2 marks is not worth stalling Section B's remaining ~49 minutes over.

#5. Sources and honest gaps

Primary sources used directly this pass: the full October 2023 and January 2021 mark schemes and examiner reports; the full January 2025 examiner report (its mark scheme is absent from the archive, stated explicitly in §2 rather than papered over). research/veridian/WEC14- verified-facts.md and forge-exam-technique-guide.md §2 were read first.

Genuine gaps:

• Only two series' mark schemes were read in full for the internal-split comparison in §1; this document does not claim the two structures found (single-calculation-split vs two-independent- calculations) are the only two that exist across all 13 series, only that both are real and both were found.
• The 70%/30%/60%/40% figures in §3 are Pearson's own reported statistics, not independently recomputed by this document (there is no way to recompute a national pass-rate from a PDF mark scheme) — they are reported as quoted, not verified beyond confirming the quote's own wording against the primary PDF.