329.87% is the change from 77 to 331
Calculation steps:
[( 331 - 77 ) ÷ 77] x 100 = 329.87%
Formula
Percentage change = [(331 - 77) / 77] x 100
Subtract the new number by the original number
331 - 77 = 254
254 ÷ 77 = 3.2987012987012987
3.2987012987012987 x 100 = 329.87%