How to create a protiftability line chart in %?

[vitornmind]

Sorry if this is a dumb question, but I've been studying Power BI and I am quite lost. I would like to build a profitability line chart, where my X axis is a date, my Y axis (values) is a percentage of increase, and my legend is a name. I will use an example of stock prices:

Id Name Date Value

1	ABC	22/07/2019	10.37
2	F1	22/07/2019	1.99
3	ABC	23/07/2019	10.42
4	F1	23/07/2019	2.07

If I plot the table above, the value of stock ABC is much higher than F1, so the lines will not be easily comparable. It is usual, in such scenario, to plot the profitability in % of these stocks.

How do I achieve this? Thanks in advance

[richbenmintz · Accepted solution]

Hi @vitornmind 

Assuming that your data looks like your sample the following formula should work.

Change from Prior = divide(sum('Table1'[Value]), 
CALCULATE(sum(Table1[Value]), 
-- remove Data filter context on x axis
FILTER(ALL(Table1[Date]), 
-- get record for prior date
'Table1'[Date] = DATEADD(VALUES(Table1[Date]), -1, DAY))), 
--set divide by zero value to 1 to ensure that the -1 one part of the equation does not return -100% when denom is 0
1)-1

I hope this helps,

Richard