340% is the change from 210 to 924
Calculation steps:
[( 924 - 210 ) ÷ 210] x 100 = 340%
Formula
Percentage change = [(924 - 210) / 210] x 100
Subtract the new number by the original number
924 - 210 = 714
714 ÷ 210 = 3.4
3.4 x 100 = 340%
Example