131.09% is the change from 312 to 721
Calculation steps:
[( 721 - 312 ) ÷ 312] x 100 = 131.09%
Formula
Percentage change = [(721 - 312) / 312] x 100
Subtract the new number by the original number
721 - 312 = 409
409 ÷ 312 = 1.310897435897436
1.310897435897436 x 100 = 131.09%