STEP 1: Go to the Dextools page here:
https://www.dextools.io/app/pancakeswap/pair-explorer/0xb84ddc645c27d4dc4bfa325c946f9d89d3afcc7a
STEP 2: Now on the Dextools page find the daily volume like the one circled in red in the example below. Copy the amount you see and paste it in the calculator. For example on the image below the 24h volume in USD would be 16,034,863.18