Targum Jonathan on Leviticus
And if it be an unclean animal, then he shall redeem it according to its valuation, and add a fifth of the price to it; but if he will not redeem it, then it shall be sold at the price of its valuation.
Targum Jerusalem
But if it be of an unclean animal, then let him redeem it according to its valuation, and add a fifth of its price unto it. And if it be not redeemed, it shall be sold according to its value.