Thanks for looking at it! Here is the link:
www.cpapsleepmedical.com/index.php/shop-now
The front end and back end counts agree, the issue is the brand listing and category listing.
From what I can see category is used to determine product grouping in front end and backend.
From what i can see the "Brand" field is used for the front end product grouping by Brand, the back-end uses Brand category.
My thinking from the tally error is that there is an indexing issue, because it is correct elsewhere.
*** In this image you can see the "Shop by Category" and "Shop by brand". The total count for "Machines" is too low by 2. Should say 24. The total count for "Mask Accessories" is too low by 1. Should say 31. Brand "Fisher & Paykel" is too low by 3, should say 24.
front-end back-end
Masks (30) 30 30
Machines (22) 24 24
CPAP Accessories (1) 1 1
Machine Accessories (9) 9 9
Mask Accessories (30) 31 31
Count 95 95
front-end back-end
ResMed (54) 54 54
Philips Respironics (16) 16 16
Fisher & Paykel (21) 24 24
Sleep Medical (1) 1 1
Count 95 95