procedure TForm1.Button1Click(Sender: TObject);
var
vprestamo,ano1: Currency;
const
int1=0.22;
int2=0.18;
begin
vprestamo:=strtoint(edit1.Text);
if vprestamo <= 50000 then
begin
ano1:=vprestamo * int1;
edit2.Text:=Floattostr(ano1);
end
else
begin
ano1:=vprestamo * int2;
edit2.text:=Floattostr(ano1);
end;
end;