Answer:
The discount is 28%
Step-by-step explanation:
The original value of the TV is $1,420, that is the 100% of the value. If we want to find the discount value we could calculate as follows:
[tex]D=1-(\frac{price with discount}{full price} )\\D=1-\frac{1022.40}{1420} \\D=1-0.72\\D=0.28[/tex]
The discount is 28%