-44.92% is the change from 817 to 450
Calculation steps:
[( 450 - 817 ) ÷ 817] x 100 = -44.92%
Formula
Percentage change = [(450 - 817) / 817] x 100
Subtract the new number by the original number
450 - 817 = -367
-367 ÷ 817 = -0.44920440636474906
-0.44920440636474906 x 100 = -44.92%