1. Credit card spending is 2, yuan in three installments:
installment fee = total installment amount * installment fee rate =2*.75%=15 yuan;
principal payable in each installment = total installment amount/installment number =2/3=666.67 yuan;
total amount payable in each installment = installment fee+principal payable in each installment =15+666.67=681.67 yuan.
2. Credit card spending is 2, yuan in six installments:
installment fee = total installment amount * installment fee rate =2*.7%=14 yuan;
principal payable in each installment = total installment amount/installment number =2/6=333.33 yuan;
total amount payable in each installment = installment fee+principal payable in each installment =14+333.33=347.33 yuan.