2800% is the change from 5 to 145
Calculation steps:
[( 145 - 5 ) ÷ 5] x 100 = 2800%
Formula
Percentage change = [(145 - 5) / 5] x 100
Subtract the new number by the original number
145 - 5 = 140
140 ÷ 5 = 28
28 x 100 = 2800%
Example