-83.96% is the change from 536 to 86
Calculation steps:
[( 86 - 536 ) ÷ 536] x 100 = -83.96%
Formula
Percentage change = [(86 - 536) / 536] x 100
Subtract the new number by the original number
86 - 536 = -450
-450 ÷ 536 = -0.8395522388059702
-0.8395522388059702 x 100 = -83.96%