Imagine teachers exporting worksheets from a design tool. A school wants cheaper later exports without repricing earlier ones.
How: work toward a solution
A fictional worksheet maker has three seats and 120 monthly exports. The first 100 cost 0.20 each; later exports cost 0.10 each. Thus 100 × 0.20 + 20 × 0.10 = 22. Change usage: 100 costs 20, 101 costs 20.10 and zero costs zero. Taxes, fees, refunds and tier flat fees are omitted.
Each slice keeps its own unit price.
Worksheet maker · illustrative example
Graduated pricing
Worksheet maker · 3 seats · 120 exports/month
Shared tier table
Exports
Unit price
0–100
0.20
101+
0.10
First slice: up to 100 × 0.20
Later slice: remainder × 0.10
Total
100 × 0.20 + 20 × 0.10 = 22.00
Same usage with the other tier method: 12.00
No tier flat fees. Zero usage costs zero.
Fictional amounts. Taxes, fees and refunds omitted.
The customer pays 0.20 for each of the first 100 monthly exports and 0.10 thereafter. At 120, the bill is 20 + 2 = 22; at 101 it is 20.10. Zero usage costs zero in this offer.
A fictional demo within this article. Reset or reload restores its initial state.
What: the concept
Graduated pricing prices units within each tier separately and adds the subtotals. Reaching a cheaper tier does not reprice earlier units.
A worksheet maker may discount additional exports while preserving the price of earlier work. Volume pricing changes the rate for all units at a threshold. Base plus overage charges a base with included units; these are different formulas even with similar breakpoints.
02Applications
The customer pays 0.20 for each of the first 100 monthly exports and 0.10 thereafter. At 120, the bill is 20 + 2 = 22; at 101 it is 20.10. Zero usage costs zero in this offer.
03Implementation & cautions
State inclusive boundaries and calculate with exact currency units. Test 0, 100, 101 and 120. Flat tier fees, entitlement enforcement, seller duties and payment collection are outside this calculator; do not infer them from the subtotal table.
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