-82.39% is the change from 528 to 93
Calculation steps:
[( 93 - 528 ) ÷ 528] x 100 = -82.39%
Formula
Percentage change = [(93 - 528) / 528] x 100
Subtract the new number by the original number
93 - 528 = -435
-435 ÷ 528 = -0.8238636363636364
-0.8238636363636364 x 100 = -82.39%