-45.39% is the change from 824 to 450
Calculation steps:
[( 450 - 824 ) ÷ 824] x 100 = -45.39%
Formula
Percentage change = [(450 - 824) / 824] x 100
Subtract the new number by the original number
450 - 824 = -374
-374 ÷ 824 = -0.4538834951456311
-0.4538834951456311 x 100 = -45.39%