Fish Tank

function fishTank(input) {
    let length =  Number(input[0]);
    let width = Number(input[1]);
    let height = Number(input[2]);
    let percent = Number(input[3]);

    let volume = length * width * height;
    let volumeLitters = volume * 0.001;
//  let volumeLitters = volume / 1000;

    let occupiedSpace = volumeLitters * percent / 100;
    let neededLitters = volumeLitters - occupiedSpace;

        console.log(neededLitters);
    }