-44.51% is the change from 811 to 450
Calculation steps:
[( 450 - 811 ) ÷ 811] x 100 = -44.51%
Formula
Percentage change = [(450 - 811) / 811] x 100
Subtract the new number by the original number
450 - 811 = -361
-361 ÷ 811 = -0.44512946979038226
-0.44512946979038226 x 100 = -44.51%