** Shares of Perfect Medical Health Management 1830.HK tumbles 26.1% to HK$1.7, their lowest since April 2020
** Second-biggest pct loser on the Hong Kong bourse
** The medical beauty services provider expects net profit for year ended in March 2025 at HK$205 mln-HK$210 mln ($26.1 mln-$26.8 mln) vs HK$316 mln profit a year ago
** "Due to the economic downturn and weak consumer sentiment, consumer confidence in Hong Kong has significantly declined," company says
** Hang Seng Consumption Index .HSCGSI down 0.6%, Hang Seng Index .HSI falls 1.2%
** YTD, stock down 19.8%
($1 = 7.8498 Hong Kong dollars)
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))