The difference between two values divided by the average of the two values. Shown as a percentage.
Almost all species of the genus Calotis are native to Australia. One of these species is the Bindi-Eye (Calotis cuneifolia), also called the Purple Burr-daisy, a shrub-like herbaceous perennial that can be found growing throughout Australia, from the Northern Territory to New South Wales, Queensland and Victoria.
Australia's Plants. There are an estimated 27,700 plant species in Australia, including living fossils such as the cycad palm and the grass tree, and brilliant wildflowers such as the waratah, Sturt's desert pea, banksia and kangaroo paws.