56.27% is the change from 311 to 486
Calculation steps:
[( 486 - 311 ) ÷ 311] x 100 = 56.27%
Formula
Percentage change = [(486 - 311) / 311] x 100
Subtract the new number by the original number
486 - 311 = 175
175 ÷ 311 = 0.5627009646302251
0.5627009646302251 x 100 = 56.27%