54.27% is the change from 199 to 307
Calculation steps:
[( 307 - 199 ) ÷ 199] x 100 = 54.27%
Formula
Percentage change = [(307 - 199) / 199] x 100
Subtract the new number by the original number
307 - 199 = 108
108 ÷ 199 = 0.542713567839196
0.542713567839196 x 100 = 54.27%