Have i made a mistake?

I tried using the Calculator and it shows a mistake.

0b0000 0010 1000 1010 = 0x028A = 650

0b1000 1010 0000 0010 = 0x8A02 = 35,330 not 33,794

0b1000 0100 0000 0010 = 0x8402 = 33,794

Have i made a mistake?

L&R

a hexadecimal and binary confused Norseman :)

it looks to me like your conversions for each value are correct. What do you believe is wrong? Did you perhaps write down a hex digit incorrectly (0x84 vs 0x8A?)