By Jess Jones Polling site Yougov has downgraded its revenue and profit forecasts after sales bookings came in lower than expected. The company, which provides polling and market research to some of the world’s biggest brands, now expects its full-year 2024 revenue to be about £324m to £327m, down from the £650m “medium term” it predicted in March. It anticipates adjusted operating profit to be £41m to £44m. In the six months to January 2024, YouGov reported revenue growth of nine per cent to £143.1m and adjusted operating profit up by 23 per cent to £27.9m. It had said it expected medium-term…