-78.72% is the change from 470 to 100
Calculation steps:
[( 100 - 470 ) ÷ 470] x 100 = -78.72%
Formula
Percentage change = [(100 - 470) / 470] x 100
Subtract the new number by the original number
100 - 470 = -370
-370 ÷ 470 = -0.7872340425531915
-0.7872340425531915 x 100 = -78.72%