In our class on Sales, we get some practice describing visuals in a presentation or meeting, like charts & graphs that show what is happening with our sales: movements and trends like rising, plunging, fluctuating and remaining steady.
Here are some podcasts about this topic. The audio is free, although you might have to pay for extra resources like transcripts etc.
ESL Pod: intermediate level
Business English Pod: Upper-Intermediate to advanced level
G.A.L.E.S.L. / joe3
Some tips and links on learning English.