-7.79% is the change from 475 to 438
Calculation steps:
[( 438 - 475 ) ÷ 475] x 100 = -7.79%
Formula
Percentage change = [(438 - 475) / 475] x 100
Subtract the new number by the original number
438 - 475 = -37
-37 ÷ 475 = -0.07789473684210527
-0.07789473684210527 x 100 = -7.79%