118.8% is the change from 234 to 512
Calculation steps:
[( 512 - 234 ) ÷ 234] x 100 = 118.8%
Formula
Percentage change = [(512 - 234) / 234] x 100
Subtract the new number by the original number
512 - 234 = 278
278 ÷ 234 = 1.188034188034188
1.188034188034188 x 100 = 118.8%