-96.28% is the change from 565 to 21
Calculation steps:
[( 21 - 565 ) ÷ 565] x 100 = -96.28%
Formula
Percentage change = [(21 - 565) / 565] x 100
Subtract the new number by the original number
21 - 565 = -544
-544 ÷ 565 = -0.9628318584070796
-0.9628318584070796 x 100 = -96.28%