-96.01% is the change from 526 to 21
Calculation steps:
[( 21 - 526 ) ÷ 526] x 100 = -96.01%
Formula
Percentage change = [(21 - 526) / 526] x 100
Subtract the new number by the original number
21 - 526 = -505
-505 ÷ 526 = -0.9600760456273765
-0.9600760456273765 x 100 = -96.01%