Ideas about adjusting the delta information of the performance section on the Dashboard page

[eason9487]

For a record, It's a follow-up of some ideas discussed in #462.

User story

Dashboard page:

• https://github.com/woocommerce/google-listings-and-ads/pull/462#discussion_r613716168. As a user, if the delta value is comparing 0 to any positive value, I want to see more meaningful delta information on the performance cards rather than N/A.
• https://github.com/woocommerce/google-listings-and-ads/pull/462#issuecomment-820080599. As a user, there is a lot of tiny numbers on the performance cards, which makes me hard to read information.

Technical

The \<SummeryNumber> component shared from @woocommerce/components doesn't allow a customized text.

Acceptance criteria

• [ ] Show max. % when comparing 0 to any position value on the delta label of the \<SummaryNumber> component.
• [x] Round the delta values up to the closest integer on the delta label of the \<SummaryNumber> component. (done in https://github.com/woocommerce/google-listings-and-ads/pull/524)

[tomalec]

Deltas were rounded in https://github.com/woocommerce/google-listings-and-ads/pull/524, marking sub-item as done.

(Added to Woogle project, not to lose it from sight, but to Later as it needs some feedback, UX insights, and probably features/fixes to @woocommerce/components.SummaryNumber)

[tomalec]

The remaining idea is to add max. % as proposed in https://github.com/woocommerce/google-listings-and-ads/pull/462#issuecomment-819477867 and tentatively approved in https://github.com/woocommerce/google-listings-and-ads/pull/462#issuecomment-820080599

I think this is something we should upstream to woocommerce-admin. https://github.com/woocommerce/woocommerce-admin/issues/7042 That way we could keep it consistent with other analytics and we will probably need changes there anyway.