73.31% is the change from 311 to 539
Calculation steps:
[( 539 - 311 ) ÷ 311] x 100 = 73.31%
Formula
Percentage change = [(539 - 311) / 311] x 100
Subtract the new number by the original number
539 - 311 = 228
228 ÷ 311 = 0.7331189710610932
0.7331189710610932 x 100 = 73.31%