67.81% is the change from 233 to 391
Calculation steps:
[( 391 - 233 ) ÷ 233] x 100 = 67.81%
Formula
Percentage change = [(391 - 233) / 233] x 100
Subtract the new number by the original number
391 - 233 = 158
158 ÷ 233 = 0.6781115879828327
0.6781115879828327 x 100 = 67.81%