What is the acquisition cost per customer using human chat reps vs. chatbots?

a) With Human Representatives: ([Marketing Costs] + [Human Representatives Salaries + Benefits])/Customers Acquired

b) With Chatbots: ([Marketing Costs] + [Chatbots Subscription Costs] + [LESS Human Representatives to pay]) / ([Possibly more customers])

HINT:

this is what the course assistant said about the question about the acquisition

1. only about 4% of people who visited hubspot.com filled out a form or interacted in live chat 2. 57% of the marketing and sales process was often complete before a prospect made physical contact with a seller 3. In 2017, HubSpot was attracting a pool of leads where 40% were graded with scores ranging from 7 to 10, making them worthy of a salespersons attention. 4. Chat reps often played a role in engaging with qualified leads and were able to set up meetings with the more expensive salespeople for 12.5% of these leads.

The CA said we should use the percentages provided