FA-95680 / Shipping rate zone lookup / Member archive

Contract discount: largest accounts get the smallest discount · case 05

Top-tier accounts are discounted at the entry tier rate.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

Cents. Weekly spend (dollars, may have cents) selects the discount: >= 5000 -> 25%, >= 2000 -> 18%, >= 500 -> 12%, else 0. Discount = list * pct / 100 rounded half up. Net is floored at the minimum charge, but never above the list rate. Return [pct, net].

Why this case matters

Contract pricing discounts list rates by volume tier subject to a minimum.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
generated mix 49	`[12, 880]`	`[25, 750]`	Failed

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