138.89% is the change from 306 to 731
Calculation steps:
[( 731 - 306 ) ÷ 306] x 100 = 138.89%
Formula
Percentage change = [(731 - 306) / 306] x 100
Subtract the new number by the original number
731 - 306 = 425
425 ÷ 306 = 1.3888888888888888
1.3888888888888888 x 100 = 138.89%