devro plc said wednesday that pretax profit increased for 2021 after it experienced accelerated revenue growth better volume price and mix the foodcasing manufacturer said pretax profit for the 12 months was 376 million pounds 501 million compared with gbp294 million in 2020 revenue for the period was gbp2524 million compared with gbp2476 million a year earlier energy and rawmaterial cost inflation led the company to take mitigating actions in the second half of 2021 and in early 2022 through inflationled price rises the current year has begun well and the company expects to make fullyear progress based on current market conditions it said devro proposed a final dividend of 65 pence a share bringing the total payout for the year to 93 pence a share