-84.22% is the change from 526 to 83
Calculation steps:
[( 83 - 526 ) ÷ 526] x 100 = -84.22%
Formula
Percentage change = [(83 - 526) / 526] x 100
Subtract the new number by the original number
83 - 526 = -443
-443 ÷ 526 = -0.8422053231939164
-0.8422053231939164 x 100 = -84.22%