Code to reverse a HEX value and convert to Decimal

It outputs a reverse HEX value on the serial monitor like so; 0xCE 0x67 0x6E 0x5A

What? Why do YOU think the bytes are output in the reverse order?

Ideally I would like the serial monitor to just spit out this value rather than the reverse code, I know (I'm fairly sure) it can be done in code but unfortunately don't have the ability (I'm really bad at maths), so was hoping somebody could come to my rescue...

How good at math do you have to be to output the data in order 3, 2, 1, 0 instead of 0, 1, 2, 3? It's a one line of code change. Here's a hint: It's the for loop that needs changing.