-16.37% is the change from 507 to 424
Calculation steps:
[( 424 - 507 ) ÷ 507] x 100 = -16.37%
Formula
Percentage change = [(424 - 507) / 507] x 100
Subtract the new number by the original number
424 - 507 = -83
-83 ÷ 507 = -0.16370808678500987
-0.16370808678500987 x 100 = -16.37%