302.86% is the change from 210 to 846
Calculation steps:
[( 846 - 210 ) ÷ 210] x 100 = 302.86%
Formula
Percentage change = [(846 - 210) / 210] x 100
Subtract the new number by the original number
846 - 210 = 636
636 ÷ 210 = 3.0285714285714285
3.0285714285714285 x 100 = 302.86%