[josecarneiro]

Summary

computeCumulativeValue formatted each breakdown line at full precision. With a quantity normalised from a yearly consumption (1000 kWh / 12 = 83.333… kWh), the journey's cumulative price tooltip showed:

83.33 kWh kosten €28.33, durchschnittlich 34.00 cents/kWh.
Erste 83.333333 kWh * 34 cents/kWh = €28.333333333333

The same breakdown is rendered by the entity price table in 360.

This changes what the breakdown displays:

• quantityUsed: rounded to 2 decimals (was up to 6)
• totalAmountDecimal: precision: 2, useRealPrecision: false, the same as total
• tierAmountDecimal (the tier's unit price) keeps its real precision, so 34.56 cents/kWh stays as it is
• totalWithPrecision / subtotalWithPrecision are unchanged

Only display strings change. The tier amounts and totals are computed exactly as before.

The only existing expectations that change are the sub-cent tiers: 27.7255 cents → 27.73 cents and 10.866 cents → 10.87 cents. These now match total: '38.59 cents'. The rounded lines can differ from the rounded total by a cent (27.73 + 10.87 vs 38.59), as with any per-line rounding.

Changeset: minor. The strings a consumer may rely on change.

Jira: STABLE360-13364. The 360 entity app (^5.9.0) picks this up with the next release. journey-monorepo is pinned to 5.6.8 and gets it when it upgrades @epilot/pricing, which crosses the @epilot/sdk migration (5.8.0) and the i18next ^25 peer (5.9.0). That upgrade is a separate change.

Test plan

• New test: graduated tiers at 1000 / 12 kWh → 50 kWh / 33.33 kWh, line totals €17.28 / €10.00, unit price 34.56 cents/kWh kept. It fails on main.
• vitest run: 639 passing, and tsc --noEmit is clean (both also ran in the lefthook pre-commit)
• eslint src/tiers: no new warnings (the 4 non-null-assertion warnings are on existing lines)

🤖 Generated with Claude Code

https://claude.ai/code/session_018ZVb2xHqHs2s2bUy7Ut25g

[changeset-bot]

🦋 Changeset detected

Latest commit: e2a0712

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@epilot/pricing	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[jnmau]

It's a breaking change in theory, so it should maybe be a minor version bump.

Otherwise, approved. ✅