22.74% is the change from 277 to 340
Calculation steps:
[( 340 - 277 ) ÷ 277] x 100 = 22.74%
Formula
Percentage change = [(340 - 277) / 277] x 100
Subtract the new number by the original number
340 - 277 = 63
63 ÷ 277 = 0.22743682310469315
0.22743682310469315 x 100 = 22.74%