302.9% is the change from 207 to 834
Calculation steps:
[( 834 - 207 ) ÷ 207] x 100 = 302.9%
Formula
Percentage change = [(834 - 207) / 207] x 100
Subtract the new number by the original number
834 - 207 = 627
627 ÷ 207 = 3.028985507246377
3.028985507246377 x 100 = 302.9%