How much is it to add a photo to the photography of aristocratic babies and children?

How much is it to add a photo? This is different in every children's photography institution. Take Chengdu Xinlu as an example. Although it's not a second sale, products other than photography kits usually range from 20 yuan to 40 yuan if customers take the initiative to add photos. Of course, some children's photo studios are well-known, and adding a film may reach more than 100 yuan.