-54.12% is the change from 994 to 456
Calculation steps:
[( 456 - 994 ) ÷ 994] x 100 = -54.12%
Formula
Percentage change = [(456 - 994) / 994] x 100
Subtract the new number by the original number
456 - 994 = -538
-538 ÷ 994 = -0.5412474849094567
-0.5412474849094567 x 100 = -54.12%