-87.02% is the change from 655 to 85
Calculation steps:
[( 85 - 655 ) ÷ 655] x 100 = -87.02%
Formula
Percentage change = [(85 - 655) / 655] x 100
Subtract the new number by the original number
85 - 655 = -570
-570 ÷ 655 = -0.8702290076335878
-0.8702290076335878 x 100 = -87.02%