-⅝=-0.625,
-61%=-0.61,
-⅔=-0.667 approx.
In order least to greatest:
-0.667, -0.625, -0.61, -0.59 that is:
-⅔, -⅝, -61%, -0.59.
Remember that a larger magnitude negative number is smaller than a smaller magnitude negative number because the smaller one is more positive.