At that time Menahem, starting out from Tirzah, attacked Tiphsah and everyone in the city and its vicinity, because they refused to open their gates. He sacked Tiphsah and ripped open all the pregnant women.
That is, about 38 tons or about 34 metric tons
Menahem exacted this money from Israel. Every wealthy person had to contribute fifty shekelse of silver to be given to the king of Assyria. So the king of Assyria withdrew and stayed in the land no longer.