57.14% is the change from 49 to 77
Calculation steps:
[( 77 - 49 ) ÷ 49] x 100 = 57.14%
Formula
Percentage change = [(77 - 49) / 49] x 100
Subtract the new number by the original number
77 - 49 = 28
28 ÷ 49 = 0.5714285714285714
0.5714285714285714 x 100 = 57.14%