218.31% is the change from 284 to 904
Calculation steps:
[( 904 - 284 ) ÷ 284] x 100 = 218.31%
Formula
Percentage change = [(904 - 284) / 284] x 100
Subtract the new number by the original number
904 - 284 = 620
620 ÷ 284 = 2.183098591549296
2.183098591549296 x 100 = 218.31%