9.8% is the change from 51 to 56
Calculation steps:
[( 56 - 51 ) ÷ 51] x 100 = 9.8%
Formula
Percentage change = [(56 - 51) / 51] x 100
Subtract the new number by the original number
56 - 51 = 5
5 ÷ 51 = 0.09803921568627451
0.09803921568627451 x 100 = 9.8%