The fall comes despite a 37% rise in revenue to $18.15bn (£11.25bn) during the three months to 25 December.
PepsiCo’s full year profit rose 6% to $6.32bn (£3.9bn) and revenues for the year reached $57.84bn (£35.87bn).
The maker of Walkers, Tropicana and Quaker warned that rising commodities prices would drive prices upwards for the year ahead.
PepsiCo chairman and CEO Indra Nooyi says: “We are encouraged by the momentum of our businesses” but warns that the business is “mindful” that unemployment, inflation and difficult competitive pricing environment will continue to impact an already weak consumer landscape.
PepsiCo’s results come a day after rival Coca-Cola reported a 59% increase in profit to $14.2bn (£8.8bn) for the year. Coke’s full year revenue reached $35.1bn (£27.8bn).