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The business week in numbers

JB Hi-Fi shares dump despite a record profit, Transurban's bottom line surges, and a healthy payday for Myer's erstwhile chief executive: here are a few of the numbers that grabbed attention - or should have - in the business world this week.

MONDAY:

8 per cent - the amount by which JB Hi-Fi shares fell after the home electronics and entertainment retailer revealed a record first-half profit but warned of margin pressures and issued lower-than-expected guidance.

TUESDAY:

276 per cent - the amount by which Transurban lifted its first-half profit - from $88 million to $331 million - after a 9.6 per cent rise in toll revenue.

WEDNESDAY:

$1.2m - the amount Richard Umbers will pocket after being forced out without notice after three unsuccessful years as Myer chief executive.

THURSDAY:

$15.8m - the value of John McGrath's stake in the eponymous realtor he founded when the company's ASX-listed securities were placed into a trading halt. The stake is roughly the same size as an alleged gambling debt that a Fairfax Media report claimed Mr Grath has with a betting firm - a claim Mr McGrath has rejected as "ridiculous" and "rubbish".

FRIDAY:

1.06 per cent - the international high roller win rate Star Entertainment managed in the first half of its financial year. The abnormally low percentage - down from 1.62 per cent a year earlier - led to a 76.8 per cent slump in first-half profit to $32.9 million.