For the fiscal years ended October $31$

$($in millions$)$

$2012$

$2011$

$2010$

Allowance for doubtful accounts$-$accounts receivable

Balance, beginning of period $ $470$ $ $525$ $ $629$

Increase in allowance from acquisition $--277$

Addition of bad debts provision $1002380$

Deductions, net of recoveries $(106)(105)(191)$

Balance, end of period $ $464$ $ $470$ $ $525$

What amount of bad debts expense did HPQ report each year $2010$ through $2012($ignore increase in allowance from acquisitions$)?$ What amount was actually written off?