"鬥陣俱樂部"有一段電影台詞是 Take the number of vehicles in the field, A 「現行已發售車輛數」 multiply by the probable rate of failure, B 「故障機率」 multiply by the average out-of-court settlement, C 「庭外和解的平均金額」
A times B times C equals X. (A x B x C = X)
If X is less than the cost of a recall, we don't do one. 「如果 X 小於召回成本 , 就不召回」