mostrar.js

const resultado = await Swal
    .fire({
        input: "number",
        html: `
    <h2>Total: <small >$${TOTAL_VENTA.toFixed(2)}</small></h2>
    <h1>Cambio: <small id="cambio"></small></h1>
    `,
        showCancelButton: true,
        confirmButtonText: "Ok",
        cancelButtonText: "Cancelar",
    });