Assuming the last$-$in$,$first$-$out $($LIFO$)$ method, determine

a$.$ the cost of jeans sold on Jan. $31$ and b$.$ the remaining value of the inventory

$\backslash$table$[[$Shirts Inventory$],[$Date$,\backslash$table$[[$Purchases$],[$Quantity$]],\backslash$table$[[$Unit$],[$cost$]],\backslash$table$[[$Total$],[$Cost$]],$Quantity,$\backslash$table$[[$Cost$],[$of$],[$Sales$]],\backslash$table$[[$Remaining$],[$Inventory$]]],[\backslash$table$[[$Unit$],[$Cost$]],\backslash$table$[[$Total$],[$Cost$]],$Quantity,$\backslash$table$[[$Unit$],[$Cost$]],\backslash$table$[[$Total$],[$Cost$]]],[\backslash$table$[[$Nov$.1],[$Nov$.5]],425,12,5,100,220,12\mathrm{.}0,2,640,\backslash$table$[[425],[205]],\backslash$table$[[12\mathrm{.}0],[12\mathrm{.}0]],\backslash$table$[[5,100],[2,460]]],[\backslash$table$[[$Nov$.],[11]],175,11,1,881,,,,\backslash$table$[[205],[-175]],\backslash$table$[[12\mathrm{.}0],[11\mathrm{.}0]],\backslash$table$[[2,460],[*1,881$