Leaving a job to start a business (run these 6 numbers first)

Leaving a job to start a business comes down to 6 numbers you can work out while still employed, from your real spending to what a customer has paid you.
Best age to start a business (what your 30s, 40s and 50s give you)

The best age to start a business is when you have expertise a client will pay for. See what founder data says your 30s, 40s and 50s each give you.
How to start a business while working full time (if you feel trapped)

Start a business while working full time without quitting first. Read your contract, choose one direction and get paid before you build anything.