-33.9% is the change from 994 to 657
Calculation steps:
[( 657 - 994 ) ÷ 994] x 100 = -33.9%
Formula
Percentage change = [(657 - 994) / 994] x 100
Subtract the new number by the original number
657 - 994 = -337
-337 ÷ 994 = -0.33903420523138833
-0.33903420523138833 x 100 = -33.9%