-54.38% is the change from 993 to 453
Calculation steps:
[( 453 - 993 ) ÷ 993] x 100 = -54.38%
Formula
Percentage change = [(453 - 993) / 993] x 100
Subtract the new number by the original number
453 - 993 = -540
-540 ÷ 993 = -0.5438066465256798
-0.5438066465256798 x 100 = -54.38%