-86.76% is the change from 657 to 87
Calculation steps:
[( 87 - 657 ) ÷ 657] x 100 = -86.76%
Formula
Percentage change = [(87 - 657) / 657] x 100
Subtract the new number by the original number
87 - 657 = -570
-570 ÷ 657 = -0.867579908675799
-0.867579908675799 x 100 = -86.76%