You can try using the "Temperature Diverging" color palette and reverse it. It'll be red - yellow - green, instead of gold, but it'll color in everything dynamically.
The other way to get exactly the colors you want is to change the measure values pill on your colors shelf from continuous to discrete. This will cause every numerical value to have its own color. Then you can manually give each number the color you'd like. Obviously there's a lot more work involved in doing it this way.
Can you try below code.
IF [Column name] > 80% THEN 'Green'
ELSEIF [Column name] > 65 AND [Column name] <= 80 THEN 'Gold'
ELSEIF [Column name] < =65 THEN 'Red'
Drag this calculated filed in color .