41.18% is the change from 51 to 72
Calculation steps:
[( 72 - 51 ) ÷ 51] x 100 = 41.18%
Formula
Percentage change = [(72 - 51) / 51] x 100
Subtract the new number by the original number
72 - 51 = 21
21 ÷ 51 = 0.4117647058823529
0.4117647058823529 x 100 = 41.18%