Hubbub donor churn calculator
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A calculator to show how revenue & donor numbers are affected by churn rate
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This is a free resource from Hubbub.
To get more digital fundraising advice, head over to our blog
HOW TO USE THE CALCULATOR:

Amend the cells with a white background & see how these variables affect the tables & graphs below
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http://blog.hubbub.net
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New donors per year
Starting amount of donors
Average yearly donation
Churn % of org 1
Churn % of org 2
Avg revenue gift increase
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36012034.00%0.00%0.00%
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Y1Y2Y3Y4Y5Y6Y7Y8Y9Y10
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No. of donorsOrg 10243950576164666768
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Org 203672108144180216252288324
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Y1Y2Y3Y4Y5Y6Y7Y8Y9Y10
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Cumulative RevenueOrg 102851758413559203542769035382433115139559581
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Org 2043201296025920432006480090720120960155520194400
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Y1Y2Y3Y4Y5Y6Y7Y8Y9Y10
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Revenue in yearOrg 10285147335975679573367693792880848187
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Org 204320864012960172802160025920302403456038880
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Hubbub Donor Churn Calculator
Sheet5
New users
SupermetricsQueries
Cumulative Revenue Chart
Cumulative Donor Chart
Average gift per year