-1.61% is the change from 994 to 978
Calculation steps:
[( 978 - 994 ) ÷ 994] x 100 = -1.61%
Formula
Percentage change = [(978 - 994) / 994] x 100
Subtract the new number by the original number
978 - 994 = -16
-16 ÷ 994 = -0.01609657947686117
-0.01609657947686117 x 100 = -1.61%