73.87% is the change from 310 to 539
Calculation steps:
[( 539 - 310 ) ÷ 310] x 100 = 73.87%
Formula
Percentage change = [(539 - 310) / 310] x 100
Subtract the new number by the original number
539 - 310 = 229
229 ÷ 310 = 0.7387096774193549
0.7387096774193549 x 100 = 73.87%