I'm taking a MOOC and in it, the instructor showed how to do a percent difference quick table calc. No biggie right? And then she showed how to relate the percent difference to the first period in the data and I was all like:
I get super excited about the smallest things in life. Why am I so excited about this? Because this tip lets you answer the question that a lot of people have when looking at the data:
How much has it changed since the beginning?
By using the Relative to/First option, we can answer that question!