67.52% is the change from 234 to 392
Calculation steps:
[( 392 - 234 ) ÷ 234] x 100 = 67.52%
Formula
Percentage change = [(392 - 234) / 234] x 100
Subtract the new number by the original number
392 - 234 = 158
158 ÷ 234 = 0.6752136752136753
0.6752136752136753 x 100 = 67.52%