Basically, from what i can see and understand, is that you take the original price. lets use the chair. $139.99 you choose which discount you would like to use either the $20 off or 20% off. if you choose $20 then $139.99-$20=119.99 but if you choose 20% $139.99x0.20=27.99 (meaning you deduct $27.99 from $139.99) 139.99-27.99=$112 now you decide which one you'd choose. i would say 20% off because it costs less. <span />
