* means the same as x, namely multiplication.
So ALC is WBC times the lymphocyte percentage: ALC = 2.8 x 80.5 = 225.
You don't have enough information to compute Trevor's ARC.
I know you are looking for reassuring news. Just remember that statistics are based on results for groups of patients and don't give us any guarantee (good or bad) for the prognosis for one particular patient. That's why knowing how Trevor is doing week to week is what really counts.
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