The same first-purchase-date rule produces every figure on this page and the new-buyer lines inside the omni panels. There is no second definition (BR-12).
new-customer sales are a slice of the same day's net sales, not an addition to them (BR-9)
Value
New customers
446
Net sales
$24,630.56
% of net sales
13.4%
AST
$55.23
AST index vs fleet
84.8%
Colour tokens: gold = an input the business asserted · blue = a figure presented as given · green = calculated here. Dotted underline = hover for the formula.