Maximum Commission per Transaction

Hi,

I’m from Indonesia and my currency (IDR) amount is pretty huge and may reach a million. I recently tried this plugin by giving a 50% commission for each sales. My affiliate scored a purchase of 250,000 so the affiliate should receive 125,000 as his commission. However, when I looked at his commission, he only received 99,999.99 which certainly is lower than he had deserved.

Is this the limitation of this plugin? If not, how can I raise this limit?

Thanks for the help!