-10.04% is the change from 508 to 457
Calculation steps:
[( 457 - 508 ) ÷ 508] x 100 = -10.04%
Formula
Percentage change = [(457 - 508) / 508] x 100
Subtract the new number by the original number
457 - 508 = -51
-51 ÷ 508 = -0.10039370078740158
-0.10039370078740158 x 100 = -10.04%