Moses is solving the problem below.

a box of spaghetti at the grocery store is purchased for $1.60 wholesale and is marked up by 60 percent. then, the store marks down the item by 20 percent. a customer wants to buy three boxes of spaghetti. how much will the customer pay, including paying 8 percent sales tax? round your answer to the nearest cent.

look at the table below.

steps
moses’s work

in which step did moses first make a mistake in his work?
step 1
step 2
step 3
step 4