-8.08% is the change from 978 to 899
Calculation steps:
[( 899 - 978 ) ÷ 978] x 100 = -8.08%
Formula
Percentage change = [(899 - 978) / 978] x 100
Subtract the new number by the original number
899 - 978 = -79
-79 ÷ 978 = -0.08077709611451943
-0.08077709611451943 x 100 = -8.08%