24.55% is the change from 277 to 345
Calculation steps:
[( 345 - 277 ) ÷ 277] x 100 = 24.55%
Formula
Percentage change = [(345 - 277) / 277] x 100
Subtract the new number by the original number
345 - 277 = 68
68 ÷ 277 = 0.24548736462093862
0.24548736462093862 x 100 = 24.55%