Inflation unexpectedly remained steady last month as upward pressure from petrol prices was offset by easing food costs, according to official figures.The rate of Consumer Prices Index (CPI) was 3.8% in September, remaining at the same level as both July and August, the Office for National Statistics said.Economists had predicted a reading of 4% for the month.

Inflation unexpectedly remained steady last month as upward pressure from petrol prices was offset by easing food costs, according to official figures.The rate of Consumer Prices Index (CPI) was 3.8% in September, remaining at the same level as both July and August, the Office for National Statistics said.Economists had predicted a reading of 4% for the month.