-94.5% is the change from 400 to 22
Calculation steps:
[( 22 - 400 ) ÷ 400] x 100 = -94.5%
Formula
Percentage change = [(22 - 400) / 400] x 100
Subtract the new number by the original number
22 - 400 = -378
-378 ÷ 400 = -0.945
-0.945 x 100 = -94.5%
Example