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Month-over-Month Growth Calculator

Enter last and this month's values to find month-over-month growth.

Result

12.50%
1,500.00

How it is calculated

Two figures are needed: the previous month's value P and the current month's value C, in the same unit (money, users, visits). The tool computes the absolute change C − P and the growth rate (C − P) / |P| × 100. Dividing by the absolute value of P means that a move from −200 to −100 shows as +50%, an improvement, rather than a misleading negative figure. Growth is shown as a percentage with two decimals, the change with two decimals in the input's unit. If the previous value is 0 the rate is undefined and the tool returns no result.

Worked example

Monthly revenue was 12000 last month and 13500 this month. Step 1: change = 13500 − 12000 = 1500. Step 2: 1500 / 12000 = 0.125. Step 3: 0.125 × 100 = 12.5. The tool shows growth of 12.50% with an absolute change of 1,500.00.

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Common mistakes

  • Swapping the two months: entering this month as the previous value flips the sign, so +12.5% becomes −11.11%.
  • Starting from a zero month, for example a product's launch month; the rate cannot be computed and nothing is shown.
  • Reading a 50% drop followed by a 50% rise as break-even; 100 → 50 → 75 still ends 25% below the start.
  • Mixing units between the months, such as revenue in thousands for one month and full amounts for the other.

About this calculator

Month-over-month (MoM) growth measures the percentage change in a metric between two consecutive months, calculated as ((this month − last month) ÷ last month) × 100, alongside the simple absolute difference between the two values. Unlike year-over-year comparisons, MoM growth is sensitive to short-term fluctuations and seasonal effects, since it only looks at the immediately preceding period.

Business analysts, startup founders, and marketers track MoM growth for metrics like revenue, user signups, or website traffic because it's the fastest way to spot a trend shift — a sudden slowdown or acceleration shows up in month-over-month numbers well before it would be visible in a slower-moving annual comparison. It's a standard line item in investor updates and internal dashboards, though it's often read alongside longer-term trends since a single month's swing can be noisy or seasonal rather than a genuine change in trajectory.

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Comments (1)

  • Editorial team

    One month's rate says little about the trend, because a single strong or weak month can come from seasonality or a one-off event. If you want to judge direction, compare the same month a year earlier as well. Also note that a steady 5 percent a month compounds to roughly 80 percent over twelve months, not 60. This tool compares just two months. Which metric are you tracking, revenue, visits or sign-ups?

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