50.24% is the change from 205 to 308
Calculation steps:
[( 308 - 205 ) ÷ 205] x 100 = 50.24%
Formula
Percentage change = [(308 - 205) / 205] x 100
Subtract the new number by the original number
308 - 205 = 103
103 ÷ 205 = 0.5024390243902439
0.5024390243902439 x 100 = 50.24%