-54.33% is the change from 994 to 454
Calculation steps:
[( 454 - 994 ) ÷ 994] x 100 = -54.33%
Formula
Percentage change = [(454 - 994) / 994] x 100
Subtract the new number by the original number
454 - 994 = -540
-540 ÷ 994 = -0.5432595573440644
-0.5432595573440644 x 100 = -54.33%