-54.23% is the change from 994 to 455
Calculation steps:
[( 455 - 994 ) ÷ 994] x 100 = -54.23%
Formula
Percentage change = [(455 - 994) / 994] x 100
Subtract the new number by the original number
455 - 994 = -539
-539 ÷ 994 = -0.5422535211267606
-0.5422535211267606 x 100 = -54.23%