-10.89% is the change from 450 to 401
Calculation steps:
[( 401 - 450 ) ÷ 450] x 100 = -10.89%
Formula
Percentage change = [(401 - 450) / 450] x 100
Subtract the new number by the original number
401 - 450 = -49
-49 ÷ 450 = -0.10888888888888888
-0.10888888888888888 x 100 = -10.89%