51.22% is the change from 205 to 310
Calculation steps:
[( 310 - 205 ) ÷ 205] x 100 = 51.22%
Formula
Percentage change = [(310 - 205) / 205] x 100
Subtract the new number by the original number
310 - 205 = 105
105 ÷ 205 = 0.5121951219512195
0.5121951219512195 x 100 = 51.22%