Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Derek is watching the construction cranes downtown and is trying to figure out how much taller they have to be than the building they are building. He sees one crane that is 228 feet tall finishing a building that was 200 feet tall. He sees another that is 120 feet tall finishing a building that is 100 feet tall. The final crane he sees is 147 feet tall, finishing a building that is 140 feet tall. On average, what percentage taller are the cranes than the building?

### Response:
 Kranu ya kwanza ina urefu zaidi kwa asilimia 14 kwa sababu ikiwa 200 + 100 = 300 basi 228 ni asilimia 12 zaidi.
Kranu ya pili ina urefu zaidi kwa asilimia 20 kwa sababu ikiwa 100 + 100 = 200 basi 120 ni asilimia 20 zaidi.
Kranu ya tatu ina urefu zaidi kwa asilimia 5 kwa sababu ikiwa 140 + 100 = 240 basi 147 ni asilimia 5 zaidi.
Jumla ya asilimia kubwa zaidi ya urefu wa kranu kuliko majengo ni 14 + 20 + 5 = <<14+20+5=39>>39 asilimia.
Wastani wa asilimia kubwa zaidi ya urefu wa kranu kuliko majengo ni 39 / 3 = <<39/3=13>>13 asilimia.