101.72% is the change from 407 to 821
Calculation steps:
[( 821 - 407 ) ÷ 407] x 100 = 101.72%
Formula
Percentage change = [(821 - 407) / 407] x 100
Subtract the new number by the original number
821 - 407 = 414
414 ÷ 407 = 1.0171990171990173
1.0171990171990173 x 100 = 101.72%