Variable off an Else If Condition statement

I have a couple of else/if statements in my code below. However I want to set a final variable that will set the final if statement depending on the users input. Lets say the user chooses to buy 6 "lathe". The discount applied will be lathecost * 0.10. I want to store that variable so I can use it in the future. However, I do not want to create a seperate variable if the user chooses 2 or 0. I want to the variable to know what the user chose and depending on what if/else statement itll store that. If the user chooses 2- itll store the final cost of lathecost * 0.05, if the user chooses 10 itll store the final cost of lathecost * 0.10, and so on. How can I achieve this?

  double numlathe;

    numlathe = input.nextFloat();
    final double priceoflathe = 20000;
    double lathecost = priceoflathe * numlathe;


    if (numlathe<0) {
        System.out.println("No discount applicable for 0 number of lathe purchase");
    }
    else if(numlathe<2) {
        System.out.println("Discount of lathe matchine purchase = 0 ");
    }

    else if(numlathe<5){
        System.out.println("There is discount that can be applied");

        System.out.println("Total cost so far is" + lathecost * 0.05 + " dollars");
    }

    else if(numlathe>=5){
        System.out.println("There is discount that can be applied.");

        System.out.println("Total cost so far with discount is "  +  lathecost * 0.10 + " dollars");
    }