byotrol plc said wednesday that its sales improved significantly in the second half of fiscal 2022 from the first though fullyear sales will remain below fiscal 2021 the infection prevention and control technology company now expects product sales of 52 million pounds 69 million for the year ending march 31 that would be in line with sales from fiscal 2020 byotrol said that if it doesnt conclude any large sales in the next four weeks it would expect overall revenue of at least gbp6 million with positive earnings before interest taxes depreciation and amortization for fiscal 2022 shares at 0822 gmt were down 35 at 275 pence