Yokohama Municipal Bus（横浜市営バス）announced some changes of bus stops at Yokohama Station East Exit Terminal (in Sogo), which starts from 1st of July, 2013.
The bus route numbers involved in this change are: 9, 48, 86, 89, and 270.
Please check the website below. Although it's in Japanese, you can see the tables and numbers on the right bottom (from left to right, bus route number, the number of the stop before July, the number of the stop after July) .
Opens to the website of Yokohama Municipal Bus