This calculator finds the year-over-year (YoY) growth of sales: enter last year’s figure and this year’s figure for the same period. You get the growth rate in percent, the change and the ratio between the two years.
Formula
YoY growth = (this year − last year) ÷ last year × 100. A negative result is a decline.
- a: sales in the earlier period (must not be 0)
- b: sales in the same period one year later
Worked Example
Last year 120,000, this year 138,000.
- Change = 138,000 − 120,000 = 18,000.00
- 18,000 ÷ 120,000 = 0.15, × 100 = 15.00%
- Ratio = 138,000 ÷ 120,000 = 1.1500
Limits and common mistakes
- Compare like with like: the same months or quarters, so seasons do not distort the figure.
- Growth of 15% then a fall of 15% does not return to the start (1.15 × 0.85 = 0.9775).
- Over several years use the average yearly rate (ratio^(1/years) − 1), not the total divided by years.
Formula used
in a | Last year's sales | - | 120000 | 0 in b | This year's sales | - | 138000 | 0 out g | Year-over-year growth | % | (b - a) / a * 100 | 2 out ch | Change | - | b - a | 2 out r | Ratio this year ÷ last year | - | b / a | 4
Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work
Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.
More cards in this drawer
- Surface Footage Calculator: How to Measure It120.00 sq ft
- Marketing Reach: How to Calculate It2,500 people
- Freight Transportation Cost Calculator: Estimate Shipping25.00 USD
- Conveyor Belt Feet per Minute Calculator and Formula100.00 ft/min
- Visits per 1,000: Formula and Examples50.00 visits per 1,000
- Welding Inches per Minute Calculator and Formula6.00 in/min