20.58% is the change from 277 to 334
Calculation steps:
[( 334 - 277 ) ÷ 277] x 100 = 20.58%
Formula
Percentage change = [(334 - 277) / 277] x 100
Subtract the new number by the original number
334 - 277 = 57
57 ÷ 277 = 0.20577617328519857
0.20577617328519857 x 100 = 20.58%