300.48% is the change from 210 to 841
Calculation steps:
[( 841 - 210 ) ÷ 210] x 100 = 300.48%
Formula
Percentage change = [(841 - 210) / 210] x 100
Subtract the new number by the original number
841 - 210 = 631
631 ÷ 210 = 3.0047619047619047
3.0047619047619047 x 100 = 300.48%