118.25% is the change from 400 to 873
Calculation steps:
[( 873 - 400 ) ÷ 400] x 100 = 118.25%
Formula
Percentage change = [(873 - 400) / 400] x 100
Subtract the new number by the original number
873 - 400 = 473
473 ÷ 400 = 1.1825
1.1825 x 100 = 118.25%