-51.79% is the change from 502 to 242
Calculation steps:
[( 242 - 502 ) ÷ 502] x 100 = -51.79%
Formula
Percentage change = [(242 - 502) / 502] x 100
Subtract the new number by the original number
242 - 502 = -260
-260 ÷ 502 = -0.5179282868525896
-0.5179282868525896 x 100 = -51.79%
Example