-20.75% is the change from 53 to 42
Calculation steps:
[( 42 - 53 ) ÷ 53] x 100 = -20.75%
Formula
Percentage change = [(42 - 53) / 53] x 100
Subtract the new number by the original number
42 - 53 = -11
-11 ÷ 53 = -0.20754716981132076
-0.20754716981132076 x 100 = -20.75%