301.45% is the change from 207 to 831
Calculation steps:
[( 831 - 207 ) ÷ 207] x 100 = 301.45%
Formula
Percentage change = [(831 - 207) / 207] x 100
Subtract the new number by the original number
831 - 207 = 624
624 ÷ 207 = 3.0144927536231885
3.0144927536231885 x 100 = 301.45%