247.62% is the change from 210 to 730
Calculation steps:
[( 730 - 210 ) ÷ 210] x 100 = 247.62%
Formula
Percentage change = [(730 - 210) / 210] x 100
Subtract the new number by the original number
730 - 210 = 520
520 ÷ 210 = 2.4761904761904763
2.4761904761904763 x 100 = 247.62%