I have a website named docCore, which provides an AI chatbot. This chatbot recommends doctors and provides the location of their clinics. Additionally, if a patient mentions any diseases, the chatbot generates a medication prescription based on its trained dataset. The website follows a subscription model, with monthly subscriptions priced at $$7$ and yearly subscriptions at $$60.$ Calculate its three$-$year lifetime value $($LTV$),$ highlight it$,$ and explain it$.$

$-$Key inputs to calculate LTV

$1$: Renvenue Channels

$2$: Gross margin for each of your revenue

$3$: retention rate

$4$: life of product

$5$: next product purchase rate

$6$: Cost of capital rate for your business

$-$ How to calculate LTV$?$

$\mathrm{.}1$ for each year y

$2.$ for each revenue channel in your business model

$3.$ if in y the customer will replace your product

$4.$ use $$gross margin$,$retention rate$($if any$),$ and$5.$next product purchase rate$$ to calculate your profit p

$6.$ else

$7.$ use $$gross margin$$ and $$retention rate$($if any$)8.$ to calculate your profit p

$9.$ total$\_$profit $+=$ p

$10.$ calculate the present value pv of total$\_$profit in y

$11.$ LTV $+=$ pv

$12.$ total$\_$profit $=0$