Instructions: You are given a sentence in Italian. Your job is to translate the Italian sentence into English.
Input: Quando la Proctor & Gamble ridusse il numero di shampoo Head & Shoulders da 26 a 15, ottenne un incremento del 10% nelle vendite.
Output:
When Proctor & Gamble went from 26 different kinds of Head & Shoulders to 15, they saw an increase in sales by 10 percent.