303.9% is the change from 77 to 311
Calculation steps:
[( 311 - 77 ) ÷ 77] x 100 = 303.9%
Formula
Percentage change = [(311 - 77) / 77] x 100
Subtract the new number by the original number
311 - 77 = 234
234 ÷ 77 = 3.038961038961039
3.038961038961039 x 100 = 303.9%