-96.07% is the change from 535 to 21
Calculation steps:
[( 21 - 535 ) ÷ 535] x 100 = -96.07%
Formula
Percentage change = [(21 - 535) / 535] x 100
Subtract the new number by the original number
21 - 535 = -514
-514 ÷ 535 = -0.9607476635514018
-0.9607476635514018 x 100 = -96.07%