Conditional Formatting with Formula - have I got the order of precedence wrong?

Hi,

I have set up the attached sample data to test my understanding of conditional formatting (CF).

The required cell fill colours are shown in column A, the associated CF conditions in column B and the values to be thus formatted in column C.

I seem to have set up the correct formulae for the CF but all results in column C are formatted as if they're <-0.50, which only one is.

Can someone please tell me what I'm doing wrong?

Thanks!