SAN JOSE — Samsung may be facing the threat of a $2.2 billion bill, but the South Korean company is reaching for its coin purse.

Judith Chevalier, one of Samsung’s damages experts, told jurors on Monday the company should pay only $1.75 per device if found to infringe Apple’s patents. At that rate, Samsung Electronics Co. would owe just $38.4 million in total damages, an amount that stands in stark contrast to Apple Inc.’s request for more than $2 billion.