-10.06% is the change from 507 to 456
Calculation steps:
[( 456 - 507 ) ÷ 507] x 100 = -10.06%
Formula
Percentage change = [(456 - 507) / 507] x 100
Subtract the new number by the original number
456 - 507 = -51
-51 ÷ 507 = -0.10059171597633136
-0.10059171597633136 x 100 = -10.06%