$-1.$ The following assumptions are made by a company when preparing its cash budget:

Invoices are issued on the last day of each month. Customers paying in the month after sale are entitled to deduct a $4\%$ settlement discount. Credit sales values for August to November are budgeted as follows.

$\backslash$table$[[$August$,$September,October,November$],[$$$100000,$$$120000,$$$80000,$$$70000$