-91.79% is the change from 475 to 39
Calculation steps:
[( 39 - 475 ) ÷ 475] x 100 = -91.79%
Formula
Percentage change = [(39 - 475) / 475] x 100
Subtract the new number by the original number
39 - 475 = -436
-436 ÷ 475 = -0.9178947368421052
-0.9178947368421052 x 100 = -91.79%