28700% is the change from 3 to 864
Calculation steps:
[( 864 - 3 ) ÷ 3] x 100 = 28700%
Formula
Percentage change = [(864 - 3) / 3] x 100
Subtract the new number by the original number
864 - 3 = 861
861 ÷ 3 = 287
287 x 100 = 28700%
Example