111.97% is the change from 401 to 850
Calculation steps:
[( 850 - 401 ) ÷ 401] x 100 = 111.97%
Formula
Percentage change = [(850 - 401) / 401] x 100
Subtract the new number by the original number
850 - 401 = 449
449 ÷ 401 = 1.119700748129676
1.119700748129676 x 100 = 111.97%