75.14% is the change from 177 to 310
Calculation steps:
[( 310 - 177 ) ÷ 177] x 100 = 75.14%
Formula
Percentage change = [(310 - 177) / 177] x 100
Subtract the new number by the original number
310 - 177 = 133
133 ÷ 177 = 0.751412429378531
0.751412429378531 x 100 = 75.14%