-93.36% is the change from 994 to 66
Calculation steps:
[( 66 - 994 ) ÷ 994] x 100 = -93.36%
Formula
Percentage change = [(66 - 994) / 994] x 100
Subtract the new number by the original number
66 - 994 = -928
-928 ÷ 994 = -0.9336016096579477
-0.9336016096579477 x 100 = -93.36%