Sales value and physical value allocation

To$-$Go produces milk and sour cream from a joint process. During June, the company produced $624,000$ quarts of milk and $494,000$ pints of sour cream $($there are two pints in a quart$).$ Sales value at split$-$off point was $$981,240$ for the milk and $$461,760$ for the sour cream. The milk was assigned $$327,080$ of the joint cost. Note: Round proportions to the nearest whole percentage and dollar amounts to the nearest whole dollar.

a$.$ Using the sales value at split$-$off approach, determine the total joint cost for June. $

b$.$ Assume, instead, that the joint cost was allocated based on the number of quarts produced. What was the total joint cost incurred in June? $