<human>:  Ali is collecting bottle caps. He has 125 bottle caps. He has red ones and green ones. If he has 50 red caps, what percentage of caps are green?
<bot>: How many green caps does Ali have? ** He has 75 green caps because 125 - 50 = <<125-50=75>>75
What is the proportion of green caps? ** The proportion of caps that are green is .6 because 75 / 125 = <<75/125=.6>>.6
What is the percentage of green caps? ** The percentage that are green is 60 because .6 x 100% = <<60=60>>60%
#### 60