How to use this calculator
In final-exam mode, the first value is the current average across all non-final work. The second is the target overall percentage.
A required result above 100% is unreachable without extra credit. A result at or below zero means the target is already secured under your entered weighting. Letter-grade boundaries are not assumed.
The formula
Score = earned ÷ possible × 100. Required final = [target − current × (1 − w)] ÷ w, where w = final weight ÷ 100.
A worked example
80 out of 100 is 80%. A current average of 80%, target of 85% and final weight of 30% requires 96.67% on the final.
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