109.61% is the change from 406 to 851
Calculation steps:
[( 851 - 406 ) ÷ 406] x 100 = 109.61%
Formula
Percentage change = [(851 - 406) / 406] x 100
Subtract the new number by the original number
851 - 406 = 445
445 ÷ 406 = 1.0960591133004927
1.0960591133004927 x 100 = 109.61%