-1.25% is the change from 798 to 788
Calculation steps:
[( 788 - 798 ) ÷ 798] x 100 = -1.25%
Formula
Percentage change = [(788 - 798) / 798] x 100
Subtract the new number by the original number
788 - 798 = -10
-10 ÷ 798 = -0.012531328320802004
-0.012531328320802004 x 100 = -1.25%