2370.59% is the change from 17 to 420
Calculation steps:
[( 420 - 17 ) ÷ 17] x 100 = 2370.59%
Formula
Percentage change = [(420 - 17) / 17] x 100
Subtract the new number by the original number
420 - 17 = 403
403 ÷ 17 = 23.705882352941178
23.705882352941178 x 100 = 2370.59%