681.9% is the change from 105 to 821
Calculation steps:
[( 821 - 105 ) ÷ 105] x 100 = 681.9%
Formula
Percentage change = [(821 - 105) / 105] x 100
Subtract the new number by the original number
821 - 105 = 716
716 ÷ 105 = 6.819047619047619
6.819047619047619 x 100 = 681.9%