SHOOT THROUGH WALL QUESTION

Ok, well i know how to do shoot through wall because it has been posted here so many times. The thing is i don't like adding something to my hack unless i understand how it was found, so i went to olly and i clearly see the wallmgr and the offsets for the edgeshot and wallshot ,but the index is multiplied by 0x474, and I don't know how where or how you know you must multiply the index of the wallmgr by 0x474. If I am not clear, here is what i am talking about:


you see where it says (i * 0x474)? i is the index of the wallmgr but i don't know why it's multiplied by 0x474. Any help or explanation is appreciated. Thanks.

There is some command that multiplys some registers value by 0x474 but idk because iam not at home
try right click->search for->all commands and find imul eXx, eXx, 474 where eXx is the name of the register.