Trade Commissions

function tradeCommissions(input) {

    let town = (input[0]);
    let sales = (input[1]);

    let commisssion = 0;

    if (sales > 0 && sales <= 500) {
        switch (town) {
            case "Sofia": console.log((commisssion = sales * 0.05).toFixed(2)); break;
            case "Varna": console.log((commisssion = sales * 0.045).toFixed(2)); break;
            case "Plovdiv": console.log((commisssion = sales * 0.055).toFixed(2)); break;
            default: console.log("error");
        }
    } else if (sales <= 1000) {
        switch (town) {
            case "Sofia": console.log((commisssion = sales * 0.07).toFixed(2)); break;
            case "Varna": console.log((commisssion = sales * 0.075).toFixed(2)); break;
            case "Plovdiv": console.log((commisssion = sales * 0.08).toFixed(2)); break;
            default: console.log("error");
        }
    } else if (sales <= 10000) {
        switch (town) {
            case "Sofia": console.log((commisssion = sales * 0.08).toFixed(2)); break;
            case "Varna": console.log((commisssion = sales * 0.1).toFixed(2)); break;
            case "Plovdiv": console.log((commisssion = sales * 0.12).toFixed(2)); break;
            default: console.log("error");
        }
    } else if (sales > 1000) {
        switch (town) {
            case "Sofia": console.log((commisssion = sales * 0.12).toFixed(2)); break;
            case "Varna": console.log((commisssion = sales * 0.13).toFixed(2)); break;
            case "Plovdiv": console.log((commisssion = sales * 0.145).toFixed(2)); break;
            default: console.log("error");
        }
    } else {
        console.log("error");
    }
}
tradeCommissions(["Plovdiv", "-500"]);