-90.34% is the change from 435 to 42
Calculation steps:
[( 42 - 435 ) ÷ 435] x 100 = -90.34%
Formula
Percentage change = [(42 - 435) / 435] x 100
Subtract the new number by the original number
42 - 435 = -393
-393 ÷ 435 = -0.903448275862069
-0.903448275862069 x 100 = -90.34%