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Inventories
6 Months Ended
Jan. 31, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
Major classifications of inventories are as follows:

January 31, 2022July 31, 2021
Finished goods – RV$121,798 $114,843 
Finished goods – other111,881 57,810 
Work in process412,536 376,594 
Raw materials770,650 602,106 
Chassis349,954 292,921 
Subtotal
1,766,819 1,444,274 
Excess of FIFO costs over LIFO costs(87,740)(74,890)
Total inventories, net$1,679,079 $1,369,384 

Of the $1,766,819 and $1,444,274 of inventories at January 31, 2022 and July 31, 2021, $1,053,259 and $946,767, respectively, were valued on the first-in, first-out (“FIFO”) method, and $713,560 and $497,507, respectively, were valued on the last-in, first-out (“LIFO”) method.