JavaScript Switch

function solve(input) {
    let day = Number(input.shift());
    let kindAp = input.shift();
    let grade = input.shift();
    let price = 0;

    switch (kindAp) {
        case 'room for one person':
            if (day < 10) {
                price = (day - 1) * 18.0;
            } else if (day >= 10 && day <= 15) {
                price = (day - 1) * 18.0;
            } else if (day > 15) {
                price = (day - 1) * 18.0;
            }
            break;
        case 'apartment':
            if (day < 10) {
                price = ((day - 1) * 25.0) * 0.7;
            } else if (day >= 10 && day <= 15) {
                price = ((day - 1) * 25.0) * 0.65;
            } else if (day > 15) {
                price = ((day - 1) * 25.0) * 0.50;
            }
            break;
        case 'president apartment':
            if (day < 10) {
                price = ((day - 1) * 35.0) * 0.9;
            } else if (day >= 10 && day <= 15) {
                price = ((day - 1) * 35.0) * 0.85;
            } else if (day > 15) {
                price = ((day - 1) * 35.0) * 0.80;
            }
            break;
    }

    if (grade === 'positive') {
        price * 1.25;
    } else if (grade === 'negative') {
        price * 0.90;
    }
}