-50.33% is the change from 906 to 450
Calculation steps:
[( 450 - 906 ) ÷ 906] x 100 = -50.33%
Formula
Percentage change = [(450 - 906) / 906] x 100
Subtract the new number by the original number
450 - 906 = -456
-456 ÷ 906 = -0.5033112582781457
-0.5033112582781457 x 100 = -50.33%