-1.38% is the change from 799 to 788
Calculation steps:
[( 788 - 799 ) ÷ 799] x 100 = -1.38%
Formula
Percentage change = [(788 - 799) / 799] x 100
Subtract the new number by the original number
788 - 799 = -11
-11 ÷ 799 = -0.01376720901126408
-0.01376720901126408 x 100 = -1.38%