Conditional formatting with multiple condition & Color

You only need 3 formulas
maybe a little adjustment for if values are exactly 70% ,80%, 90% ,100%

are we conditional formatting row 3

and where you have > or < do you also want =

in which case

select the range B3:K3

then apply 3 rules

=OR( B3<=0.7, B3>1)
RED

=OR(AND(B3>0.7,B3<=0.8),AND(B3>0.9,B3<1))
yellow

=AND(B3>0.8,B3<0.9)
green

you may need to change the = to make sure they cover the values you want
ie 90.5%
is not covered

see attached