55.43% is the change from 276 to 429
Calculation steps:
[( 429 - 276 ) ÷ 276] x 100 = 55.43%
Formula
Percentage change = [(429 - 276) / 276] x 100
Subtract the new number by the original number
429 - 276 = 153
153 ÷ 276 = 0.5543478260869565
0.5543478260869565 x 100 = 55.43%