2992.86% is the change from 28 to 866
Calculation steps:
[( 866 - 28 ) ÷ 28] x 100 = 2992.86%
Formula
Percentage change = [(866 - 28) / 28] x 100
Subtract the new number by the original number
866 - 28 = 838
838 ÷ 28 = 29.928571428571427
29.928571428571427 x 100 = 2992.86%