-15.14% is the change from 502 to 426
Calculation steps:
[( 426 - 502 ) ÷ 502] x 100 = -15.14%
Formula
Percentage change = [(426 - 502) / 502] x 100
Subtract the new number by the original number
426 - 502 = -76
-76 ÷ 502 = -0.15139442231075698
-0.15139442231075698 x 100 = -15.14%