等額本金和利息的償還:
每月還款= PMT(7.05%/ 12,10 * 12,100000,0,0)= -1163.66元
總本金和利息的償還1163.66元= 1163.66 * 10 * 12 = 139639.2
利益= 139639.2-100000 = 39639.2