388.24% is the change from 17 to 83
Calculation steps:
[( 83 - 17 ) ÷ 17] x 100 = 388.24%
Formula
Percentage change = [(83 - 17) / 17] x 100
Subtract the new number by the original number
83 - 17 = 66
66 ÷ 17 = 3.8823529411764706
3.8823529411764706 x 100 = 388.24%