Tell 62,99 some are gifts, some you bought when things are on sale, some are bought in Taobao very cheap.
If they ask how much you two earn: just say enough la, have to give to parents on both sides and the baby will use more money in future due to education and interest classes. Need to save an education fund if baby has to go to university in future, also have to buy medical insurance. Lots of expenses. Also you have rent and mortgage, so not much savings left.