-46.3% is the change from 838 to 450
Calculation steps:
[( 450 - 838 ) ÷ 838] x 100 = -46.3%
Formula
Percentage change = [(450 - 838) / 838] x 100
Subtract the new number by the original number
450 - 838 = -388
-388 ÷ 838 = -0.4630071599045346
-0.4630071599045346 x 100 = -46.3%