123.08% is the change from 65 to 145
Calculation steps:
[( 145 - 65 ) ÷ 65] x 100 = 123.08%
Formula
Percentage change = [(145 - 65) / 65] x 100
Subtract the new number by the original number
145 - 65 = 80
80 ÷ 65 = 1.2307692307692308
1.2307692307692308 x 100 = 123.08%