Orbit web apps
Orbit web apps
Calculate relative change, absolute delta, and percentage-point change. Auto-detects when you're comparing percentages (conversion rate, open rate) so you always know whether to say 'up 3pp' or 'up 13% relative'.
Part of the Orbit toolkit — free web apps for lifecycle marketers.
Go deeper
The long-form guides that explain the thinking behind the tool. Written for operators who want to know not just what to do, but why.
strategy · 8 min read
The lifecycle metrics dashboard: what to track, what to ignore
Most lifecycle dashboards show forty metrics and answer none of the questions the team actually has. A good one shows eight, and each one tells you what to do next. Here's the eight-metric dashboard that runs a real lifecycle program.
strategy · 6 min read
Reporting lifecycle to executives: the monthly update that actually lands
Most lifecycle reporting to execs is a 20-slide deck of campaign-level charts that nobody remembers a week later. The fix is structural, not quantitative. Three numbers, two decisions, one ask. Here's how to build the report that produces ongoing investment instead of polite nods.
experimentation · 9 min read
Churn cohort analysis: the one chart that tells you if retention is actually improving
A cohort retention curve is the single most useful analytical artifact in lifecycle marketing. It isolates real program impact from the compounding noise that every other metric hides, and it's the one view that survives every limitation of the simpler numbers. Here's how to build one and how to read it without kidding yourself.
Free percentage change calculator for period-over-period (PoP), year-over-year (YoY), or week-over-week (WoW) reporting. Enter two numbers, get the change and the absolute delta. Handles negatives, zero baselines, and decimals.
Marketers, analysts, and operators who need a fast, reliable way to calculate percentage change without opening a spreadsheet.
Using Claude?
Inside Orbit for Claude, percentage change is wired into every performance pull. Ask Claude to report on a campaign or Canvas and it calculates PoP, YoY, and WoW deltas automatically, with the right denominators and correct handling of zeros and small samples. Free for everyone — the Claude extension is the power-user upgrade, not a gated feature.