187.5% is the change from 136 to 391
Calculation steps:
[( 391 - 136 ) ÷ 136] x 100 = 187.5%
Formula
Percentage change = [(391 - 136) / 136] x 100
Subtract the new number by the original number
391 - 136 = 255
255 ÷ 136 = 1.875
1.875 x 100 = 187.5%
Example