Good KPIs for accounting of web development startup?

I have been working on the KPIs for our accounting sheet of our web development startup. We are not doing products (LTV or CAC and other SaaS metrics are not really a fit I believe), we are selling services (development, consulting, etc.).

I am currently including a few basic monthly KPIs:

• Operating Income
• Net Profit
• Net Income (Loss)
• Cumulative Net Income (Loss)
• Opening bank account
• Closing bank account
• Direct costs
• Indirect costs
• Overhead rate
• Overhead cost
• Net profit

I am also adding a few more KPIs in our global dashboard (mostly based on yearly values):

• Sales targets
• Average Monthly Gross burn
• Average Monthly Net burn
• Runway with current Bank account amount and Average Yearly Total Operating Expenses

A few questions on it:

• Any other KPIs you would see being important to track?
• I would like to define recruitment budget, any way to derive it from my numbers? I currently make an assumption on how I see the teams of the different departments grow, take our average salary and define my budget from there.
• How could I define a budget for expansion?
• How could I compare these to the industry? I would presume ratio would be a good thing to compare (like Overhead rate).
• Any resources you could point me to for accounting of a IT service startup? Most of what I found for IT startups is geared towards product companies.

I am trying to get through things, it is however a bit overwhelming and I do not find so far compelling material for IT services startups. Thanks in advance for any help!

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