31.01% is the change from 158 to 207
Calculation steps:
[( 207 - 158 ) ÷ 158] x 100 = 31.01%
Formula
Percentage change = [(207 - 158) / 158] x 100
Subtract the new number by the original number
207 - 158 = 49
49 ÷ 158 = 0.310126582278481
0.310126582278481 x 100 = 31.01%