How to pronounce 四成 in Cantonese (2 out of 9):

本身標普500跌了四成
The S&P 500 dropped 40%.

Cantonese Sentence Breakdown

本身 bun2 san1
itself
標普 biu1 pou2
Standard & Poor's (S&P)
daat3
to drop
to fall
to tumble
Taiwan pr. [dié]
to stumple
to slip
to stamp
a fall
liu4
(modal particle intensifying preceding clause)
(completed action marker)
to finish
to end
to settle
a final particle indicating change of situation to understand
a verb particle indicating possibility
to put in
to take away
to escape
flee in secret
四成 sei3 sing4
forty percent