How do i get the $-25\%$ as shown in the example$/$sample run.

Please look at my code and tell me what I need to change or do$.$ Thanks!

INSTRUCTIONS:

Note that it costs $120\mathrm{.}25$ dollars per credit hour in addition to $$35\mathrm{.}00$

charged for health and id services. Students with gpa of $3\mathrm{.}5$ or higher

receive a discount of $25\%$ when the total payments exceed $$700.$

My Code:

private double calculateTotalPayment$()\{$

double totalPayment $=0$;

for $($Integer crn : listOfCrns$)\{$

totalPayment $+=120\mathrm{.}25$;

$\}$

totalPayment $+=35\mathrm{.}00$; $//$ Health & id fees

if $($totalPayment $>700$ && gpa $>=3\mathrm{.}5)\{$

totalPayment $*=0\mathrm{.}75$; $//25\%$ discount

$\}$

return totalPayment;

$\}$

public void printFeeInvoice$()\{$

System.out.println$("$VALENCE COLLEGE"$)$;

System.out.println$("$ORLANDO FL $10101")$;

System.out.println$("--------------------------")$;

System.out.println$("")$;

System.out.println$("$Fee Invoice Prepared For Student: $")$;

System.out.println$(+$ studentId $+"-"+$ studentName$)$;

System.out.println$("")$;

System.out.println$("1$ Credit Hour $=$ $$120\mathrm{.}25")$;

System.out.printf$("\%-10$s$\%-10$s$\%-10$s$\%-10$s

$","$CRN$","$CR$\_$PREFIX", $"$CR$\_$HOURS", "AMOUNT"$)$;

double totalPayment $=0$;

for $($Integer crn : listOfCrns$)\{$

String prefix $=$ getPrefix$($crn$)$;

int creditHours $=$ getCreditHours$($crn$)$;

double amount $=$ creditHours $*120\mathrm{.}25$;

totalPayment $+=$ amount;

System.out.printf$("\%-10$d$\%-10$s$\%-10$d$$\%-10\mathrm{.}2$f

$",$ crn$,$ prefix, creditHours, amount$)$;

$\}$

System.out.println$("\backslash$t$\backslash$t$\backslash$tHealth & id fees $ $35\mathrm{.}00")$;

System.out.println$("------------------------------")$;

System.out.printf$("\%-10$s$$\%-10\mathrm{.}2$f

$","\backslash$t$\backslash$t$\backslash$tTotal Payments", totalPayment $+35)$;

$\}$VALENCE COLLEGE

ORLANDO FL $10101$

Fee Invoice Prepared for Student:

$5959-$DANIEL TAZI

$1$ Credit Hour $=$$$120\mathrm{.}25$