Hello again,
I apologize for the length of time until I followed up on this post, but I thought it would be relevant in case I wasn't the only one that was inquiring about how the service fee percentage is calculated.
I took Vitas's advice and contacted support and after a couple days I got a very thorough explanation and diagram of how the fees are calculated from Zenfolio's accounting department. Awesome! It definitely helped shed some light on fees and I thought I would share the results of my example.
For this example, I was incorrectly calculating the fees in the same way that Kevin was assuming it was calculated - I assumed it was $18.60 (Gross Profit) - $0.96 (Sales Tax) - $3.50 = $14.14. Then I thought it would be 12% of $14.14 getting you to $1.70 - that is incorrect.
The fees are properly calculated on a per product basis (which was stated in other posts in this thread, but this shows the calculation in black and white). In this example, my customer purchased three 4x6 photos and one 5x7 photo.
Product #1 - Three 4x6 photos
Sale price per photo - $5.00
Less base cost - $(0.29)
Total - $4.71
Less 12% Zenfolio Service Fee - $(0.57) [$4.71*.12]
Profit - $4.14
Since there were Three 4x6 photos ordered the total service fee for for the 4x6 photos is $(1.71)
Product #2 - One 5x7 photo
Sale price per photo - $6.00
Less base cost - $(0.99)
Total - $5.01
Less 12% Zenfolio Service Fee - $(0.60) [$5.01*.12]
Profit - $4.41
Since there was only One 5x7 photo ordered the total service fee for for the 5x7 photo is $(0.60)
To throw one more wrench in the mix, my customer also used a coupon code I assigned to them for $5.00 off their total order. Zenfolio adjusts for this coupon difference and credits you back 12% of the coupon price so that equals a credit coming back of $0.60 (Calculated by taking the coupon price of $5.00 and multiplying by 12%).
If you total all of the fees and credits, here's what you get...
$(1.71) for the three 4x6 photos
$(0.60) for the one 5x7 photos
$ 0.60 credit back for the coupon adjustment
$ 1.71 total Zenfolio Service Fee
Hope this helps anyone else that might wonder how the service fees are calculated, especially with the extra twist of the coupon usage.
One other thing to note - since Zenfolio only collects fees based on profits, if you use an "at cost" coupon for your friends or family, you won't pay any Zenfolio fees on their orders - only the base price for the products. Just thought I would note that since I also had that in the back of my head at one point as well.
Any questions or comments, please let me know.