Work out review rating average instantly with clear inputs, formula shown and shareable results.
A rating average is weighted by review count, so a large existing base is slow to move. The weight of new reviews shows exactly how much influence recent feedback carries.
Weighted average
Blended = (old average × old count + new average × new count) / total count
Figures are estimates based on the inputs given. Marketing performance, platform fees and conversion behaviour vary by audience, channel and season. Use this as a planning guide, not a forecast.
Because every existing review carries equal weight. With 320 reviews, 60 new ones control less than a fifth of the average.
Many rank by recency in display and some weight it in the score, so recent sentiment matters beyond the raw average.