On Monday Feb 1st lets walk thru this Together.
New Markdowns Pricing Doc: SEE HERE
Step 1: Add All Products to a Hidden Collection not live on site named 'Feb New Markdowns Test'
Step 2: Go to All Products filter by the hidden collection.
Step 4: Calculate and Bulk Edit Product Pricing Based on Above Google Doc Discount Rate.
Step 5: Add field to View 'Tags" Bulk Edit tags to remove remove the 'DISCOUNTABLE' from all products in collection.
Step 6: Save Edits - this should send all Products to Website SALE Collection