56.68% is the change from 277 to 434
Calculation steps:
[( 434 - 277 ) ÷ 277] x 100 = 56.68%
Formula
Percentage change = [(434 - 277) / 277] x 100
Subtract the new number by the original number
434 - 277 = 157
157 ÷ 277 = 0.5667870036101083
0.5667870036101083 x 100 = 56.68%