There is no magic number as many factors contribute to the overall formula.
To determine how many clients you need, start with what you need to earn to meet your business expenses and live comfortably. Cost of living is different from one region to another, as well as are lifestyle choices.
Let’s say your target is $4,000 a week based on a 50-week year ($200,000 for the year.) Prices for shop, mobile, and housecall can vary widely even within the same area. I’ve chosen three price points: $45, 65, and 85 an hour.
The formula is Weekly Target Amount/Hourly Rate.
Per week based on one hour or less grooms
$45 = 89 pets
$65 = 62 pets
$85 = 47 pets
Number of regular clients needed if on a 6-week schedule
Formula is: Weekly Number Of Pets X 6.
$45 = 534 clients
$65 = 372 clients
$85 = 282 clients
Let's tweak that number for 4 vs 8 week clients:
$45 356 vs 712
$65 248 vs 496
$85 188 vs 376
All figures are whole numbers, so either rounded up or rounded down. But you get the idea. You can see that there is a huge difference in the number of clients you need based on amount and frequency.
Being at the higher end allows you to work at a much easier pace with less stress on your body. Having clients commit to a more frequent schedule keeps the pets in more manageable coats reducing that wear and tear on you, as well as encourages a pleasant experience for the pets. Adjust the amounts and targets to suit your needs.