New Approach: Japanese Intermediate Course - Chapter 3 - 不便な駐車場

Original text coming from the "New Approach: Japanese Intermediate Course" textbook:

不便な駐車場

ある会社が駅のすぐ近くに３階建ての駐車場を造ったのですが,あまり便利する人がいなっかたそうです。料金は１時間３００円ですからそんなに高くありません。駅からやや遠いところにも駐車場がありますが、こちらは３０分１００円です。一時間で比べれば、駅の近くの駐車場のほうがこちらより１００高いです。でも、アパートの家賃もそうですが駅に近ければ近いほど高くのが普通です。それでは、なぜ駅の近くの駐車場は人気がないでしょうか。実は、この駐車場にはエレベーターがないので、３階に止めたら階段で降りたり止まったりしなければならないのです。これがけっこうつらいようです。其れで、１階波いつもいっぱいで、２階もまあまあ利用があるのですが、３階はほとんど利用されませんでした。困った経営者は何かいいか方法はないか考えて、１つのアイデアを思いつきました。上に行けば行くほど料金を安することにしたのです。さっそく２階は１時間２００円にして、３階はそれよりさらに５０円安くしました。この方法は大成功でした。今では上のほうほど早くいっぱいになって、1階から３階までいつも「満車」の表示が出しています。少しでも安くなるならエレベーターなんてなくもいいと考える人が多いのでしょう。どれくらい安ければ、不便でもかまわないと考えるか、それが問題です。

And here's my translation:

Inconvenient car park

One company have built a three-storey car park near a train station, but it looks like there aren’t many people that use it. The price is 300 yen for an hour so it’s not very much. There is another parking not so close to the train station, but it costs 100 yen for 30 minutes. If we compare the price for an hour, the car park near the train station is 100 yen more expensive than the other one. However, like the costs of renting an apartment, it’s normal that the costs of car parks also rise the closer they are to the train station. In that case, why isn’t the car park near the train station popular? As a matter of fact, because that car park has no elevator, if a person parks on the 3^rd floor, he has to get down using the stairs. This looks quite inconvenient. As a result, the first floor was always full, the second was also used quite often, but the third one wasn’t used very often. The manager was thinking if there was a solution to their problem and he came up with one idea. He decided that the higher one goes, the lower the prices will be. Immediately the prices for 1 hour on the second floor were dropped to 200 yen, and on the third floor were lowered for additional 50 yen. This solution turned out to be a great success. Now, as the third floor gets full as the first floor, floors from 1-3 are always displaying a sign for being full. Even if the price got only slightly lower, there are many people who don’t mind that there is no such thing as an elevator. The question is, how low the price must be for the people to not bother about a small inconvenience.