75.81% is the change from 310 to 545
Calculation steps:
[( 545 - 310 ) ÷ 310] x 100 = 75.81%
Formula
Percentage change = [(545 - 310) / 310] x 100
Subtract the new number by the original number
545 - 310 = 235
235 ÷ 310 = 0.7580645161290323
0.7580645161290323 x 100 = 75.81%