1700% is the change from 5 to 90
Calculation steps:
[( 90 - 5 ) ÷ 5] x 100 = 1700%
Formula
Percentage change = [(90 - 5) / 5] x 100
Subtract the new number by the original number
90 - 5 = 85
85 ÷ 5 = 17
17 x 100 = 1700%
Example