-83.62% is the change from 470 to 77
Calculation steps:
[( 77 - 470 ) ÷ 470] x 100 = -83.62%
Formula
Percentage change = [(77 - 470) / 470] x 100
Subtract the new number by the original number
77 - 470 = -393
-393 ÷ 470 = -0.8361702127659575
-0.8361702127659575 x 100 = -83.62%