If you want to assess this in terms of money, you should multiply the ISK values by 0.65 for an accurate comparison in terms of ISK per hour. Here’s an example to illustrate:

Example: Let’s say you can mine 1,000,000 ISK worth of ore in an hour. If you’re mining Moon ores, you’d calculate it as 1,000,000 ISK * 0.65 = 650,000 ISK to make a fair comparison in terms of ISK per hour.