<human>:  Ben makes a sandwich that has 1250 calories total that has two strips of bacon with 125 calories each. What percentage of the sandwich's total calories come from bacon?
<bot>: How many calories are in the bacon? ** First find the total number of calories in the bacon: 125 calories + 125 calories = <<125+125=250>>250 calories
How many calories in the bacon are? ** Then divide the number of bacon calories by the total number of calories and multiply by 100% to express the answer as a percentage: 250 calories / 1250 calories * 100% = 20%
#### 20