-7.95% is the change from 994 to 915
Calculation steps:
[( 915 - 994 ) ÷ 994] x 100 = -7.95%
Formula
Percentage change = [(915 - 994) / 994] x 100
Subtract the new number by the original number
915 - 994 = -79
-79 ÷ 994 = -0.079476861167002
-0.079476861167002 x 100 = -7.95%