is there any way i could do to be specific to my if else statements?

im a java newbie and can’t seem to terminate my code wisely,here is my if else statement and what it does is just subtracts the other if statements,is there anyway i could do to subtract the availAmount to a specific if statement? thank you

double upgradeAccessories(double availAmount) 
{
    if(availAmount>21500)
    {
        hasAC=true;
        availAmount-=21500;
    }
    else 
    {
        hasAC=false;
    }
    
    if(availAmount>=14400) 
    {
        hasLeatherSeats=true;
    availAmount-=14400;
    }
    else
    {
        hasLeatherSeats=false;
    }
    
    if(availAmount>=6250) 
    {
        hasBackWipers=true;
    availAmount-=6250;
    }
    else 
    {
        hasBackWipers=false;
    }
    
    if(availAmount>=3300)
    {
        hasFogLights=true;
    availAmount-=3300;
    }
    else 
    {
        hasFogLights=false;
    }

    return availAmount;
}

>Solution :

You can write:

double upgradeAccessories(double availAmount) {
    hasAC           = availAmount >  21500;
    hasLeatherSeats = availAmount >= 14400;
    hasBackWipers   = availAmount >= 6250;
    hasFogLights    = availAmount >= 3300;

    if (hasAC)           return availAmount - 21500;
    if (hasLeatherSeats) return availAmount - 14400;
    if (hasBackWipers)   return availAmount - 6250;
    if (hasFogLights)    return availAmount - 3300;

    return availAmount;
}