-64.75% is the change from 817 to 288
Calculation steps:
[( 288 - 817 ) ÷ 817] x 100 = -64.75%
Formula
Percentage change = [(288 - 817) / 817] x 100
Subtract the new number by the original number
288 - 817 = -529
-529 ÷ 817 = -0.6474908200734394
-0.6474908200734394 x 100 = -64.75%