-40.86% is the change from 487 to 288
Calculation steps:
[( 288 - 487 ) ÷ 487] x 100 = -40.86%
Formula
Percentage change = [(288 - 487) / 487] x 100
Subtract the new number by the original number
288 - 487 = -199
-199 ÷ 487 = -0.4086242299794661
-0.4086242299794661 x 100 = -40.86%