-5.33% is the change from 507 to 480
Calculation steps:
[( 480 - 507 ) ÷ 507] x 100 = -5.33%
Formula
Percentage change = [(480 - 507) / 507] x 100
Subtract the new number by the original number
480 - 507 = -27
-27 ÷ 507 = -0.05325443786982249
-0.05325443786982249 x 100 = -5.33%