I need a logic code

I need one logic code. I am going to make one fish marketing app. in this i used 10 screen in 10 screen what are the fishes image i selected. that selected item along with multiply the price details need to come the 11th screen. can you help me to do this work.

You probably need one screen for your fish images, and possibly another for your price details.

I hope your number of screens does not increase as the number of types of fish increases.

That should be kept in tables, and the code reused.