-55.74% is the change from 906 to 401
Calculation steps:
[( 401 - 906 ) ÷ 906] x 100 = -55.74%
Formula
Percentage change = [(401 - 906) / 906] x 100
Subtract the new number by the original number
401 - 906 = -505
-505 ÷ 906 = -0.5573951434878587
-0.5573951434878587 x 100 = -55.74%