-7.57% is the change from 978 to 904
Calculation steps:
[( 904 - 978 ) ÷ 978] x 100 = -7.57%
Formula
Percentage change = [(904 - 978) / 978] x 100
Subtract the new number by the original number
904 - 978 = -74
-74 ÷ 978 = -0.07566462167689161
-0.07566462167689161 x 100 = -7.57%