I have made this program is it another way to made it by make it more efficient.

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Javascript

This is the problem which i want to solve as If price is less than 500, fess will be 1.5%, above 500 it will be 3%. and will increase by 0.5% for every multiple of 500 and max fee chargable is 18%.

// example:- if amount is 200 fees will be 1.5%of 200 and price to be paid will be 200+ fees
// if amount is greater than 500 and less than 1000 fess will 3% of the amount
// if amount is greater than 1000 and less than 1500 fees will be 3.5%.

See the test cases:->
1.If the amount is less than 500 it will charge 1.5%
2.if the amount is greater than 500 and less than 1000 it will charge 3%.
3. and then main test case arise if the amount is greater than 1000 means after 1000
it will start increasing the charge by 0.5% as increase in amount by 500 till last when
we reach the charge of 18% for the specific amount.

Amount Charge
0000-0500 1.5
0500-1000 3.0
1000-1500 3.5
1500-2000 4.0
2000-2500 4.5
3000-3500 5.0
3500-4000 5.5
4000-4500 6.0
4500-5000 6.5
6000-6500 7.0
6500-7000 7.5
7000-7500 8.0
8000-8500 8.5
8500-9000 9.0
9000-9500 9.5
9500-10000 10.0
10000-10500 10.5
10500-11000 11.0
11500-13000 11.5
13500-14000 12.0
and so on as max charge is 18 %

What I have tried:

var val=1499;
temp=val;
var tax=1.5;
if(val>=500){  
    tax=3.0;
    temp=temp-500;1601 
    while(temp>=500)
    {
        if(tax==18){
            break;
        }
        tax=tax+0.5;
        temp=temp-500;
    }
   
}
console.log(`Total tax on ${val}= ${tax} %`)
tax=val*tax/100
var total=val+tax;
console.log(`Total Value After Tax is = ${total}`);