55.07% is the change from 276 to 428
Calculation steps:
[( 428 - 276 ) ÷ 276] x 100 = 55.07%
Formula
Percentage change = [(428 - 276) / 276] x 100
Subtract the new number by the original number
428 - 276 = 152
152 ÷ 276 = 0.5507246376811594
0.5507246376811594 x 100 = 55.07%