Answer:
For example:
Price of ice cream in june was 10$ and amount of ice cream sold is 100. Store earned 10$ 100=1000$
Price of ice cream in july has been decreased by 10%. Price of ice cream is now 9$. The amoun of ice cream sold in july increased by 24% compering to june. So amount of sold ice cream in july is 124. Store earned 9$*124=1116$.
Store's proceedings increased in July by 11.6%.
