-44.5% is the change from 400 to 222
Calculation steps:
[( 222 - 400 ) ÷ 400] x 100 = -44.5%
Formula
Percentage change = [(222 - 400) / 400] x 100
Subtract the new number by the original number
222 - 400 = -178
-178 ÷ 400 = -0.445
-0.445 x 100 = -44.5%