You have 2 choices if you're a service business owner who needs to increase your income
... do more work or charge more for the work you do.
Either is viable, but focusing on doing more billable work can easily put you on a constant high pressure treadmill.
When you concentrate only on reaching a certain total sales goal, it becomes tempting to take work at prices lower than you should just so you can get one step closer to the income you need.
You end up working more for less, and then it becomes a downward spiral.
If you're taking any work that comes along, it costs you in 2 ways: