7150% is the change from 2 to 145
Calculation steps:
[( 145 - 2 ) ÷ 2] x 100 = 7150%
Formula
Percentage change = [(145 - 2) / 2] x 100
Subtract the new number by the original number
145 - 2 = 143
143 ÷ 2 = 71.5
71.5 x 100 = 7150%
Example