-83.67% is the change from 539 to 88
Calculation steps:
[( 88 - 539 ) ÷ 539] x 100 = -83.67%
Formula
Percentage change = [(88 - 539) / 539] x 100
Subtract the new number by the original number
88 - 539 = -451
-451 ÷ 539 = -0.8367346938775511
-0.8367346938775511 x 100 = -83.67%