Easter Decoration

function easterDecoration(input) {
    let buyers = Number(input[0]);
    let index = 1;

    let totalPrice = 0;
    for (let i = 0; i < buyers; i++){
        let command = input[index];
        index++;

        let price = 0;
        let boughtItems = 0;
        while (command !== "Finish") {
            let purchase = command;
            boughtItems++;

            if (purchase === "basket") {
                price += 1.50;
            } else if ( purchase === "wreath") {
                price += 3.80;
            } else if (purchase === "chocolate bunny") {
                price += 7;
            }
            command = input[index];
            index++;
        }
            if (boughtItems % 2 === 0) {
            price *= 0.80;
            }
        totalPrice += price;
        console.log(`You purchased ${boughtItems} items for ${price.toFixed(2)} leva.`);
    }
    console.log(`Average bill per client is: ${(totalPrice / buyers).toFixed(2)} leva.`);
}