Your crowdfunding target fluctuates according to the transaction fees (PayPal transaction fees are 3.4% + 20p per pledge, whereas GoCardless charge a flat 0.5%).

Spacehive estimates your total transaction fees at the start of the campaign and add this onto the funding target. Spacehive over-estimates the fees so you’re likely to see the fees come down throughout your campaign, especially if you’re getting more pledges through GoCardless than PayPal, or if you have a series of large pledges.