What Do Icons at Top Mean

I was playing the demo of Season Match. There are five icons at the top. Three jewels which had a green check mark by them. A pick with a green check mark beside it. But the last icon looks like a spade or small shovel. What does it mean? It only said 2% and the round kept going on and on until I just quit. What was I supposed to be doing to get the percentage up? Thanks for any help.

The % is supposed to go down. It will start at 100%. You must have had one or two more things that needed broken in order to get the %. When the round starts it will tell you how many jewels you need and they will go down as you play. The % will start at 100% and go down as you break things that are blocking you.