-95.17% is the change from 435 to 21
Calculation steps:
[( 21 - 435 ) ÷ 435] x 100 = -95.17%
Formula
Percentage change = [(21 - 435) / 435] x 100
Subtract the new number by the original number
21 - 435 = -414
-414 ÷ 435 = -0.9517241379310345
-0.9517241379310345 x 100 = -95.17%