49.51% is the change from 206 to 308
Calculation steps:
[( 308 - 206 ) ÷ 206] x 100 = 49.51%
Formula
Percentage change = [(308 - 206) / 206] x 100
Subtract the new number by the original number
308 - 206 = 102
102 ÷ 206 = 0.49514563106796117
0.49514563106796117 x 100 = 49.51%