240% is the change from 210 to 714
Calculation steps:
[( 714 - 210 ) ÷ 210] x 100 = 240%
Formula
Percentage change = [(714 - 210) / 210] x 100
Subtract the new number by the original number
714 - 210 = 504
504 ÷ 210 = 2.4
2.4 x 100 = 240%
Example