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I make the calculation of these fields (Ingresso * Publico).


function calcular() {
var n1 = parseFloat(document.getElementById('valor_do_ingresso').value);
var n2 = parseInt(document.getElementById('publico_aproximado').value);
document.getElementById('renda_ingressos').innerHTML = n1 * n2;
}

I'm using onkeyup: calcular() within the extra attributes field in the Ingresso and Publico fields.
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The field (Renda) should receive the result of the calculation of the (Ingresso and Publico).
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As can be seen in the image, typing the values shows the result of the value, but this result is not shown inside the field, what could have happened?
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