Purchase Order Summary

Line items grouped by category: the Category cell spans every row in its group via RowSpan, and rows underneath it simply omit that column. The closing row's label cell spans two columns via ColSpan.

CategoryItemQtyPrice
ElectronicsWireless Mouse2$39.98
Mechanical Keyboard1$89.00
USB-C Dock1$64.50
FurnitureStanding Desk1$349.00
Office Chair1$210.00
Grand Total$752.48

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