How is pco2 overcompensated? Isn’t it undercompensated?

How is pco2 overcompensated? Isn’t it undercompensated?

It’s given ki metabolic acidosis hai… Then pCO2 will fall in range of 24-28 for normal compensation. But it’s falling more than that… so it’s respiratory alkalosis.

Thats what I selected… but its uncompensated right