125% is the change from 312 to 702
Calculation steps:
[( 702 - 312 ) ÷ 312] x 100 = 125%
Formula
Percentage change = [(702 - 312) / 312] x 100
Subtract the new number by the original number
702 - 312 = 390
390 ÷ 312 = 1.25
1.25 x 100 = 125%
Example