Challenge #17: Month-over-Month Retention Rate

[rzdodson]

Spoiler

SPOILER

Attached is my solution for this weekly challenge. 

[MatteoReddavide]

My solution

Spoiler

[e_d_g]

my solution. not sure I understand why a number of the records were removed pre-processing - due to this, my answers are different. if anyone can explain it, it would be greatly appreciated. 

[H_a_n_g_C_h_e_n__x3]

This one is a bit challenging

[realdaniel1989]

Spoiler

Main workflow



Macro

Interesting challenge! Glad I was able to use a macro

[H_a_n_g_C_h_e_n__x3]

Forgot the Macro

[lwolfie]

Apparently I never submitted this one.

[jon_amanrich]

Interesting challenge but the wording for how to calculate open and close accounts is slightly confusing!

[mattnason1]

My answers do not line up with the solution.  But when I look at the input and the instructions, I think I am right.  I wonder if some of the data had changed between when this was posted and today?

Either way fun as my first Batch Macro!

[rachel_lynch]

Spoiler

Workflow: 

Macro: