-6.13% is the change from 506 to 475
Calculation steps:
[( 475 - 506 ) ÷ 506] x 100 = -6.13%
Formula
Percentage change = [(475 - 506) / 506] x 100
Subtract the new number by the original number
475 - 506 = -31
-31 ÷ 506 = -0.06126482213438735
-0.06126482213438735 x 100 = -6.13%