56.83% is the change from 139 to 218
Calculation steps:
[( 218 - 139 ) ÷ 139] x 100 = 56.83%
Formula
Percentage change = [(218 - 139) / 139] x 100
Subtract the new number by the original number
218 - 139 = 79
79 ÷ 139 = 0.5683453237410072
0.5683453237410072 x 100 = 56.83%