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Refactor a nested IF policy into a maintained rule table

Build D2:F9 using three separate column seeds. D retains the frozen nested-IF policy: negative quantities are Review quantity; nonnegative quantities below 5 are Below minimum; the inclusive minima 5,10,25,50 select flat rates 12,10,8,6. E reads the current four-row J2:K5 policy using the largest minimum at or below each quantity, regardless of table order, with the same negative/below-minimum labels. F returns Same when both typed results agree and Changed otherwise. Fill D, E and F separately; every result needs its own copied formula. Quantities and unique nonnegative minima are whole numbers within ±1,000,000 (minima cannot be negative); current flat rates are nonnegative whole-cent numbers up to 1,000,000. These are flat rates, not progressive totals.

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Build D2:F9 using three separate column seeds. D retains the frozen nested-IF policy: negative quantities are Review quantity; nonnegative quantities below 5 are Below minimum; the inclusive minima 5,10,25,50 select flat rates 12,10,8,6. E reads the current four-row J2:K5 policy using the largest minimum at or below each quantity, regardless of table order, with the same negative/below-minimum labels. F returns Same when both typed results agree and Changed otherwise. Fill D, E and F separately; every result needs its own copied formula. Quantities and unique nonnegative minima are whole numbers within ±1,000,000 (minima cannot be negative); current flat rates are nonnegative whole-cent numbers up to 1,000,000. These are flat rates, not progressive totals.

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