Gross Profit method of estimating invenory

Granger Corp. is filing an insurance claim for inventory lost in area flooding.
The following information was available from backed up accounting records:
Inventory January 31, 2022.				70,000
Purchases through February 20 when the flood happened				190,000
Sales Revenue (goods all delivered to customers)				300,000
Sales Returns (goods returned to inventory)				6,000
Undamaged goods still on hand on February 20				16,000
From past records, we know that sales are made at 35% over cost.
Compute the amount of inventory lost for the insurance claim.