Donald Midkif, a data scientist with Khatri, Inc. has been tasked with determining in which of the largest U.S. cities the products Khatri manufactures and distributes are most popular as measured by per capita sales.

Midkif has access to two files, khatripopulation and khatrisales that provide the population and Khatri dollar sales, respectively, for each of the fifty largest U.S. cities for last year.

Use this information to calculate Khatri’s per capita sales (dollar sales divided by population) in each of these fifty cities for last year for Midkif.