A job consumes 5 sheets, each 2.5 m by 1.2 m, bought for 66 currency units per sheet. Finished parts occupy 10 m² and separately stored reusable offcuts occupy 1.2 m². Everything else is waste. For this exercise credit reusable offcuts at the original uniform cost per m²; no credit is given for waste. No other costs apply.
Calculate the finished-part area yield in percent. Keep intermediate values unrounded; round the final result to four decimal places if necessary.
