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.
It encompasses the national flower and the official flowers of the constituent states. After the Federation of Australia that took place in 1902, the upsurge in nationalism led to the search for an official national floral emblem. Archibald Campbell had founded the Wattle Club in Victoria in 1899 to promote interest in and profile of the wattle as a unique Australian flower.