298.1% is the change from 210 to 836
Calculation steps:
[( 836 - 210 ) ÷ 210] x 100 = 298.1%
Formula
Percentage change = [(836 - 210) / 210] x 100
Subtract the new number by the original number
836 - 210 = 626
626 ÷ 210 = 2.980952380952381
2.980952380952381 x 100 = 298.1%