At long last, the masked mans dance came to an end. Everyone had paid and he carefully counted every rupee as he sat beneath the shade of a nearby house.

Let's see... that was ten rupees a minute... plus the sales he made with the hero of time paraphernilia...
It'd been a little over an hour, an hour and 13 minutes exactly since he started the dance with the villagers, and there had been 23 villagers dancing. 
That would be...

73 minutes multiplied by 10 equaled 730 rupees a person.
730 multiplied by 23 people in total made... 

Jira squinted under his mask, lost in his math. He wasn't the best mathematician in the world, but as a merchant he could push the numbers easier than the average hylian.

16790 rupees he had made from those simple dance lessons. And that wasn't even counting for his wares. He'd sold 14 Bobbleheads which amounted to not including the one he had given to his cherie, 210 rupees, 3 mugs, 60 rupees, and one 'Ocarina,' 70 rupees. Totaling their set prices to his dance lessons, all in all he had made 17,130 rupees. 

Slowly, he relaxed and smiled. He had done good today. He wiped off the sweat from his brows and added the sharp gems to his rupee pouch. It had come just in time too, he'd been running low. Perhaps he should look into dancing more often. He would have plenty to buy more stock and travel more frequently. 687 Rupees isn't much when you're a travelling merchant. Thankfully, with his new fortune, in his possession were 17,817 glistening rocks. Perhaps it was time to traverse the village and seek out new treasures of his own.