Form: 10-Q

Quarterly report pursuant to Section 13 or 15(d)

November 14, 1996

STATEMENT OF CALCULATION OF AVERAGE COMMON

Published on November 14, 1996


EXHIBIT 11
BARRETT BUSINESS SERVICES, INC.
STATEMENT OF CALCULATION OF AVERAGE
COMMON SHARES OUTSTANDING


Three Months
Ended
September 30, 1996
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Primary Earnings Per Share:
Weighted average number of shares 6,776,985
Stock option plan shares to be issued at prices
ranging from $3.50 to $18.6875 per share 494,050
Warrant issues at a price of $4.20 per share 90,000
Less: Assumed purchase at average market price
during the period using proceeds received upon
exercise of options and purchase of stock, and
using tax benefits of compensation due to premature
dispositions (342,369)
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Total Primary Shares 7,018,666
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Fully Diluted Earnings Per Share:
Weighted average number of shares 6,776,985
Stock option plan shares to be issued at prices
ranging from $3.50 to $18.6875 per share 494,050
Warrant issues at a price of $4.20 per share 90,000
Less: Assumed purchase at the higher of ending or
average market price during the period using proceeds
received upon exercise of options and purchase of
stock, and using tax benefits of compensation due to
premature dispositions (342,369)
--------
Total Diluted Shares 7,018,666
=========