In the donations forms, the suggested donation amounts are
GBP: 30, 60, 120
EUR: 40, 80, 160
DKK: 250, 500, 1000
SEK/NOK: 300, 500, 1000
In addition, the donor can always pick their own amount.
These donation points we have found after doing extensive testing on these amounts. The best result was actually fund at even higher suggested amounts, but we also don't want donors to feel less of for not picking one of the suggested amounts.
Charities on the standard or premium subscription can change these on a project level. It could be that your campaign is using specific donation points to communicate its impact, or maybe just that you know that a certain target group for a project is more/less affluent than the average.
In general, we will warn against setting these too low. The average donation amount will be severely affected by lowering these.
To change the suggested donations amounts, contact support and we will set it up.