凈認購金額=認購金額/(1+認購費率)
認購費=認購金額-凈認購金額
認購份額=(凈認購金額+認購資金利息)/基金份額初始面值
2.當認購費固定時,認購份額的計算方法如下
訂閱費=固定金額
凈認購金額=認購金額-認購費用
認購份額=(凈認購金額+認購資金利息)/基金份額初始面值。