-10.44% is the change from 450 to 403
Calculation steps:
[( 403 - 450 ) ÷ 450] x 100 = -10.44%
Formula
Percentage change = [(403 - 450) / 450] x 100
Subtract the new number by the original number
403 - 450 = -47
-47 ÷ 450 = -0.10444444444444445
-0.10444444444444445 x 100 = -10.44%