57.25% is the change from 276 to 434
Calculation steps:
[( 434 - 276 ) ÷ 276] x 100 = 57.25%
Formula
Percentage change = [(434 - 276) / 276] x 100
Subtract the new number by the original number
434 - 276 = 158
158 ÷ 276 = 0.572463768115942
0.572463768115942 x 100 = 57.25%