If the cells should turn green if their value is <= minimum of the range PLUS a value between 0 and 1.99% of its value, the formula is:

=and(G3:N3<>"",G3:N3<=101.99/100*min ($G3:$N3))

if they have to turn red, the formula is:

=and(G3:N3<>"",G3:N3>=102/100*min ($G3:$N3))

If the cells should turn green if their value is <= minimum of the range PLUS a value between 0 and 1.99% of that value, the formula is:

=and(G3:N3<>"",G3:N3<=101.99/100*min ($G3:$N3))

if they have to turn red, the formula is:

=and(G3:N3<>"",G3:N3>=102/100*min ($G3:$N3))

no color if the cell is empty

If the cells should turn green if their value is <= minimum of the range PLUS a value between 0 and 1.99% of its value, the formula is:

=and(G3:N3<>"",G3:N3<=101.99/100*min (G3:N3))

if they have to turn red, the formula is:

=and(G3:N3<>"",G3:N3>=102/100*min (G3:N3))

If the cells should turn green if their value is <= minimum of the range PLUS a value between 0 and 1.99% of its value, the formula is:

=and(G3:N3<>"",G3:N3<=101.99/100*min ($G3:$N3))

if they have to turn red, the formula is:

=and(G3:N3<>"",G3:N3>=102/100*min ($G3:$N3))