2935.71% is the change from 28 to 850
Calculation steps:
[( 850 - 28 ) ÷ 28] x 100 = 2935.71%
Formula
Percentage change = [(850 - 28) / 28] x 100
Subtract the new number by the original number
850 - 28 = 822
822 ÷ 28 = 29.357142857142858
29.357142857142858 x 100 = 2935.71%