-8.8% is the change from 864 to 788
Calculation steps:
[( 788 - 864 ) ÷ 864] x 100 = -8.8%
Formula
Percentage change = [(788 - 864) / 864] x 100
Subtract the new number by the original number
788 - 864 = -76
-76 ÷ 864 = -0.08796296296296297
-0.08796296296296297 x 100 = -8.8%