327.78% is the change from 180 to 770
Calculation steps:
[( 770 - 180 ) ÷ 180] x 100 = 327.78%
Formula
Percentage change = [(770 - 180) / 180] x 100
Subtract the new number by the original number
770 - 180 = 590
590 ÷ 180 = 3.2777777777777777
3.2777777777777777 x 100 = 327.78%