-82.17% is the change from 488 to 87
Calculation steps:
[( 87 - 488 ) ÷ 488] x 100 = -82.17%
Formula
Percentage change = [(87 - 488) / 488] x 100
Subtract the new number by the original number
87 - 488 = -401
-401 ÷ 488 = -0.8217213114754098
-0.8217213114754098 x 100 = -82.17%