69.39% is the change from 49 to 83
Calculation steps:
[( 83 - 49 ) ÷ 49] x 100 = 69.39%
Formula
Percentage change = [(83 - 49) / 49] x 100
Subtract the new number by the original number
83 - 49 = 34
34 ÷ 49 = 0.6938775510204082
0.6938775510204082 x 100 = 69.39%