-32.74% is the change from 669 to 450
Calculation steps:
[( 450 - 669 ) ÷ 669] x 100 = -32.74%
Formula
Percentage change = [(450 - 669) / 669] x 100
Subtract the new number by the original number
450 - 669 = -219
-219 ÷ 669 = -0.3273542600896861
-0.3273542600896861 x 100 = -32.74%