For example, the upper limit of Fund A is 65.438+0 billion yuan. If the raised funds are 5 billion yuan, the confirmation ratio is 654.38+00/50 = 20%. Assuming that the amount of fund A subscribed by investors is 654.38+10,000 yuan, the confirmed amount is 654.38+10,000 x 20% = 20,000 yuan, and the remaining 80,000 yuan will be returned after the fundraising period.