SalesAmount = Sales[Quantity]*Sales[Net Price]

Sales Amount = SUMX ( Sales, Sales[Quantity] * Sales[Net Price] )

Total Cost = Sales[Quantity]*Sales[Unit Cost]

Total Cost = SUMX(Sales, Sales[Quantity]*Sales[Unit Cost])

Gross Margin = Sales[Sales Amount]-Sales[Total Cost]

Gross Margin % = DIVIDE([Gross Margin], Sales[Sales Amount])

All Sales Amount = SUMX ( ALL ( Sales ), Sales[Quantity] * Sales[Net Price] )

RedSales = 
SUMX ( 
FILTER ( Sales, RELATED ( 'Product'[Color] ) = "Red" ),
Sales[Quantity] * Sales[Net Price] 
)

DiscountStatus = IF(Sales[Unit Discount]>0,"Discounted","NOT Discounted")