While comparison shopping, you find two brands that cost the same, Ao and Brilig. Ao contains 500 mL (milliliters) and Brilig contains 615 mL.

Fill in the blanks and round to the nearest tenth of a percent.
Comparing the volume of shampoo between the two brands, we could compare their relative sizes.
Ao contains % as much shampoo as Brilig.
Brilig contains % as much shampoo as Ao.

We could also compare the relative change.
Brilig has % more shampoo than Ao.
Ao has % less shampoo than brilig.