Sales price on Pet Plus = $118 - ($118 x 30%) = $118-$35.4 = $82.6
Sales price on Pet Planet = $110- ($110x 25%) = $110-$27.5= $82.5
Sales tax on Pet Plus = 8% x $82.6 = $6.608
Sales tax on Pet Planet= 8% x $82.5 = $6.600
Total sale price for Pet Plus = $82.6 + $6.608 = $89.208
Total sale price for Pet Planet= $82.5 + $6.600 = $89.1
By comparison, Pet planet has a lower sale price