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Handle Zero or NA value in Calculated metric

See this idea on ideas.ibm.com

We are using Insights to get notified if % change value is more than 10% over a period of time. To calculate % change over previous period, the logic used is:

% change = (Current period cost - Previous period cost ) / Previous period cost

The problem is when we have 0 or NA value in previous period and current period has relevant value. The calculation results in division by 0 which produces erroneous value.

Can these cases where the previous period is zero can be handled differently ?
Maybe we can show Infinity increase instead of erroneous value or any better representation?

Idea priority Low
  • Admin
    Curtis Michael
    Reply
    |
    Apr 10, 2025

    Hi Aishbarya, thanks for sharing this! We understand the issue with division by 0 in % change calculations and agree it's important to handle these cases more gracefully. We don't have anything planned on our roadmap, but we will look into improvements and consider a few options, e.g., displaying "Infinity%", "New cost", or showing null when prior data is missing.