-85.67% is the change from 593 to 85
Calculation steps:
[( 85 - 593 ) ÷ 593] x 100 = -85.67%
Formula
Percentage change = [(85 - 593) / 593] x 100
Subtract the new number by the original number
85 - 593 = -508
-508 ÷ 593 = -0.8566610455311973
-0.8566610455311973 x 100 = -85.67%