A pseudocode is just a sequence of steps in a codee like statements to help u develop the required code
so it is not that difficult to guess, and your question would look something like this:
1- Enter the total amount and assing this to a varaible called say Total
2-nter the dowonpayment amount and assign it to a variable called DownPayment
3- Apply the subtraction like this
Due=Total – DownPayment; // where Due is the variable that woul carry the due amount
4- Show the result.
that is it;