-19.43% is the change from 978 to 788
Calculation steps:
[( 788 - 978 ) ÷ 978] x 100 = -19.43%
Formula
Percentage change = [(788 - 978) / 978] x 100
Subtract the new number by the original number
788 - 978 = -190
-190 ÷ 978 = -0.19427402862985685
-0.19427402862985685 x 100 = -19.43%