-82.71% is the change from 538 to 93
Calculation steps:
[( 93 - 538 ) ÷ 538] x 100 = -82.71%
Formula
Percentage change = [(93 - 538) / 538] x 100
Subtract the new number by the original number
93 - 538 = -445
-445 ÷ 538 = -0.8271375464684015
-0.8271375464684015 x 100 = -82.71%