50.98% is the change from 51 to 77
Calculation steps:
[( 77 - 51 ) ÷ 51] x 100 = 50.98%
Formula
Percentage change = [(77 - 51) / 51] x 100
Subtract the new number by the original number
77 - 51 = 26
26 ÷ 51 = 0.5098039215686274
0.5098039215686274 x 100 = 50.98%