-6.31% is the change from 507 to 475
Calculation steps:
[( 475 - 507 ) ÷ 507] x 100 = -6.31%
Formula
Percentage change = [(475 - 507) / 507] x 100
Subtract the new number by the original number
475 - 507 = -32
-32 ÷ 507 = -0.0631163708086785
-0.0631163708086785 x 100 = -6.31%