add calculator for website

[Radymyr]

   const result = document.querySelector('.calculating__result span');
    let sex = 'female',
        height,
        weight,
        age,
        ratio = 1.375;

    function calcTotal() {
        if (!sex || !height || !weight || !age || !ratio) {
            result.textContent = ':-(';
            return;
        }
        if (sex === 'female') {
            result.textContent = Math.round(
                (447.6 + 9.2 * weight + 3.1 * height - 4.3 * age) * ratio
            );
        } else {
            result.textContent = Math.round(
                (88.36 + 13.4 * weight + 4.8 * height - 5.7 * age) * ratio
            );
        }
    }

    calcTotal();

    function getStaticInformation(parentSelector, activeClass) {
        const elements = document.querySelectorAll(`${parentSelector} div`);

        elements.forEach((elem) => {
            elem.addEventListener('click', (e) => {
                if (e.target.getAttribute('data-ratio')) {
                    ratio = +e.target.getAttribute('data-ratio');
                } else {
                    sex = e.target.getAttribute('id');
                }
                console.log(sex, ratio);

                elements.forEach((elem) => {
                    elem.classList.remove(activeClass);
                });

                e.target.classList.add(activeClass);
                calcTotal();
            });
        });
    }

    getStaticInformation('#gender', 'calculating__choose-item_active');

    getStaticInformation(
        '.calculating__choose_big',
        'calculating__choose-item_active'
    );

    function getDynamicInformation(selector) {
        const input = document.querySelector(selector);

        input.addEventListener('input', () => {
            switch (input.getAttribute('id')) {
                case 'height':
                    height = +input.value;
                    break;
                case 'weight':
                    weight = +input.value;
                    break;
                case 'age':
                    age = +input.value;
                    break;
            }
            calcTotal();
        });
    }

    // getDynamicInformation('#height');
    // getDynamicInformation('#age');
    // getDynamicInformation('#weight');