The city will pay for the rehabilitation from capital funds, at an anticipated per-unit cost averaging $60,000.

The per-unit cost for acquisition has averaged $7,000 to $10,000, and for restoration, $35,000.

As the program continued the per-unit cost continued to rise in part because of high inflation during that period.

Britain needs foreign markets to keep the per-unit costs of the new frigates down enough to keep them affordable.

The higher volumes would lower per-unit costs and operating profit margin per case could rise to $14.40, from $10.45, he said.

The changes focused on lowering the per-unit cost of the engine while continuing to increase reliability.

Even with the high per-unit cost, the increase in efficiency and increased lifespan make them very attractive for street lighting use.

Production proceeds at the lowest possible per-unit cost.

Cornelius Peter, a Bosch vice president, said the company expects to have the per-unit cost of the system below $20 within three years.

The primary reasons were the weight of kulhars and the higher per-unit cost.