-74.5% is the change from 302 to 77
Calculation steps:
[( 77 - 302 ) ÷ 302] x 100 = -74.5%
Formula
Percentage change = [(77 - 302) / 302] x 100
Subtract the new number by the original number
77 - 302 = -225
-225 ÷ 302 = -0.7450331125827815
-0.7450331125827815 x 100 = -74.5%