1712.5% is the change from 8 to 145
Calculation steps:
[( 145 - 8 ) ÷ 8] x 100 = 1712.5%
Formula
Percentage change = [(145 - 8) / 8] x 100
Subtract the new number by the original number
145 - 8 = 137
137 ÷ 8 = 17.125
17.125 x 100 = 1712.5%
Example