320.27% is the change from 74 to 311
Calculation steps:
[( 311 - 74 ) ÷ 74] x 100 = 320.27%
Formula
Percentage change = [(311 - 74) / 74] x 100
Subtract the new number by the original number
311 - 74 = 237
237 ÷ 74 = 3.2027027027027026
3.2027027027027026 x 100 = 320.27%