human
Tina buys a loaf of bread for $50, 2oz of ham for $150, and a cake for $200. What percent of the cost is the ham and bread?
assistant
How much did Tina spend on bread and ham? ** The total cost of buying bread and ham was $50+$150 = $<<50+150=200>>200
How much did Tina spend in total? ** Together with the cake, Tina paid $200+$200 = $<<200+200=400>>400 for the items
What percent of the cost is the ham and bread? ** Since the total percentage for all the items is 100%, the cost of ham and bread is $200/$400 * 100% = <<200/400*100=50>>50% of the total cost of items.
#### 50