The standard room at Bayi Hotel is 240 RMB, not cheap! /accommodation/bizinfo%B0%CB%D2%BB%B1%F6%B9%DD.html

I'll try to help you find the ones that are within walking distance of the Bayi Hotel, and I've only found 2, so you can refer to them

1. Dongfang Hotel (Nantong Street) Standard room is 150 yuan /accommodation/ B1%F5%D2%CB%D6%AE%BC%D2%CA%B1%C9%D0%BC%D2%CD%A5%C2%C3%B9%DD.html

There are many more cheap lodging units on that site, you can also search for them yourself

Hope this helps!