Google Data Studio date comparison

Question

I am trying to present month comparison (variation) with a table graph in Google Data Studio.

Data is:

date        value
2020-01-01  90
2020-02-01  99
2020-03-01  99,1
2020-04-01  99,2
2020-05-01  99,3
2020-06-01  99,4
2020-07-01  99,5
2020-08-01  99,6
2020-09-01  99,7
2020-10-01  99,8
2020-11-01  99,9
2020-12-01  100
2021-01-01  100,1
2021-02-01  100,2
2021-03-01  100,3

But the table presents scripts (-), no matter the adjustments I made. I was specting values of Delta column in the table of GDS:

date        value   Delta (Var)
2020-01-01  90  
2020-02-01  99      10,00%
2020-03-01  99,1    0,10%
2020-04-01  99,2    0,10%
2020-05-01  99,3    0,10%
2020-06-01  99,4    0,10%
2020-07-01  99,5    0,10%
2020-08-01  99,6    0,10%
2020-09-01  99,7    0,10%
2020-10-01  99,8    0,10%
2020-11-01  99,9    0,10%
2020-12-01  100,0   0,10%
2021-01-01  100,1   0,10%
2021-02-01  100,2   0,10%
2021-03-01  100,3   0,10%

question from:https://stackoverflow.com/questions/65893625/google-data-studio-date-comparison

Answer 1

Waitting for answers