** Shares of Australia's Tyro Payments Ltd TYR.AX fall as
much as 22.5% to A$1.155 - set to mark worst day since Feb 21,
if losses hold
** Payment terminals firm rejects revised proposal of A$1.60
per share from private equity firm Potentia Capital
** Says higher offer continues to undervalue co
** Tyro had previously rejected Potentia's A$1.27 per-share
indicative offer in September for a similar reason
** Westpac WBC.AX ended its discussions with co, saying it
was not in the best interest of its shareholders - Tyro
** Tyro stock hits its lowest since Sept 1
** TYR had fallen 47.9% this year, as of last close
(Reporting by Nausheen Thusoo in Bengaluru)
((Nausheen.Thusoo@thomsonreuters.com;))