Table 6. — Linear trends of markups at the processing, wholesale and retail levels for finfish products during 1950-71 and 



shellfish products during 1959-71. 



Markups at different levels are the independent variables. 



Markup 



Mp 



Mw 



Mr 



margm 



selling price 

 PP - Pex 



Pp 



100 



X 100 = Processor's markup 



Pw - Pp 



p— — ^-- X 100 = Wholesalers markup 



Pr - Pw 

 Pr 



X 100 = Retailer's markup 



where Pex =Ex-vessel pnce. adjusted to the value of a quantity equivalent to the final form sold to the consumer 

 Pp = processor's price: Pw = wholesale price; Pr = retail price. 



13 



