某公司生产甲、乙和丙三种产品。2009年甲、乙和丙产品计划产量分别为800件、1200件和1500件，单位成本分别为100元、80元和70元，2010年实际产量分别为900件、1000件和1600件，累计实际总成本分别为92000元、86000元和108000元。
要求：

计算2010年甲产品可比产品成本降低额和降低率；

阅读上面短文，完成表格内容。

     Do you believe there are aliens (外星人)? Well, make a phone call and you will know. A group of

Americans can help. They made a device (装置) to "talk" to aliens. If you want to talk to an alien, you only

need to visit www. Talk To Aliens. com, call 1 - 900 - 226 - 0300 and say, "Hello aliens, this is Earth calling.

Can you hear me?" You can say anything you want.

     But now, they only take phone calls from people in the US. The call is $3. 99 every minute. After the

hotline began in February, www. Talk To Aliens. com has got hundreds of calls. There is one call every three

minutes. They are also trying to send people's e-mails, photos and videos into space.