-0.5% is the change from 794 to 790
Calculation steps:
[( 790 - 794 ) ÷ 794] x 100 = -0.5%
Formula
Percentage change = [(790 - 794) / 794] x 100
Subtract the new number by the original number
790 - 794 = -4
-4 ÷ 794 = -0.005037783375314861
-0.005037783375314861 x 100 = -0.5%