161.54% is the change from 234 to 612
Calculation steps:
[( 612 - 234 ) ÷ 234] x 100 = 161.54%
Formula
Percentage change = [(612 - 234) / 234] x 100
Subtract the new number by the original number
612 - 234 = 378
378 ÷ 234 = 1.6153846153846154
1.6153846153846154 x 100 = 161.54%