-46.71% is the change from 850 to 453
Calculation steps:
[( 453 - 850 ) ÷ 850] x 100 = -46.71%
Formula
Percentage change = [(453 - 850) / 850] x 100
Subtract the new number by the original number
453 - 850 = -397
-397 ÷ 850 = -0.46705882352941175
-0.46705882352941175 x 100 = -46.71%