-9.36% is the change from 502 to 455
Calculation steps:
[( 455 - 502 ) ÷ 502] x 100 = -9.36%
Formula
Percentage change = [(455 - 502) / 502] x 100
Subtract the new number by the original number
455 - 502 = -47
-47 ÷ 502 = -0.09362549800796813
-0.09362549800796813 x 100 = -9.36%