-14.74% is the change from 502 to 428
Calculation steps:
[( 428 - 502 ) ÷ 502] x 100 = -14.74%
Formula
Percentage change = [(428 - 502) / 502] x 100
Subtract the new number by the original number
428 - 502 = -74
-74 ÷ 502 = -0.14741035856573706
-0.14741035856573706 x 100 = -14.74%