Decide default donation amounts for PlanningAlerts and general campaign

[mlandauer]

Last year we used the following amounts for the PlanningAlerts campaign:

• 5
• 15
• 150
• 500

and the following amounts for the general campaign:

• 10
• 25
• 100
• 500

[mlandauer]

For the PA campaign the amounts that people actually donated fell like this:

• 79% of the revenue was made by donations of $50 or more
• 51% of the revenue was made by donations of $100 or more
• 35% of the revenue was made by donations of $150 or more

For the general campaign the amounts fell like this:

• 82% of the revenue was made by donations of $100 or more
• 53% of the revenue was made by donations of $200 or more

[mlandauer]

Looking at the top end of the donations, almost nobody donated over 500 for PA, while for OAF there were several donations over $500. I think there we should leave the top end unchanged for PA and increase the top end to $1000 for the general campaign.

The average donation size is about double for the general campaign compared to PA. I think the default donation sizes should reflect that.

My suggested default donation amounts for PA:

• 10
• 50
• 250
• 500

And for the general campaign:

• 50
• 100
• 500
• 1000

[mlandauer]

For PA thinking instead:

• 15
• 50
• 150
• 500
  which is basically just removing the bottom amount (5) and adding 50. It keeps the middle numbers bunched more around 100 which I think is better