520.78% is the change from 77 to 478
Calculation steps:
[( 478 - 77 ) ÷ 77] x 100 = 520.78%
Formula
Percentage change = [(478 - 77) / 77] x 100
Subtract the new number by the original number
478 - 77 = 401
401 ÷ 77 = 5.207792207792208
5.207792207792208 x 100 = 520.78%