-83.58% is the change from 475 to 78
Calculation steps:
[( 78 - 475 ) ÷ 475] x 100 = -83.58%
Formula
Percentage change = [(78 - 475) / 475] x 100
Subtract the new number by the original number
78 - 475 = -397
-397 ÷ 475 = -0.8357894736842105
-0.8357894736842105 x 100 = -83.58%