300.47% is the change from 215 to 861
Calculation steps:
[( 861 - 215 ) ÷ 215] x 100 = 300.47%
Formula
Percentage change = [(861 - 215) / 215] x 100
Subtract the new number by the original number
861 - 215 = 646
646 ÷ 215 = 3.0046511627906978
3.0046511627906978 x 100 = 300.47%