You track your steps and maybe even your calories. But do you track what it really costs to live each month? It’s easy to overlook, but your personal cost of living is one of the most important numbers in your financial life. And if you don’t know it, you may be spending in ways that don’t reflect your values—or your faith. On today's Faith & Finance on AFR, Rob West will show you how to figure it out and why it matters. Then he answers a few financial questions.