3389.29% is the change from 28 to 977
Calculation steps:
[( 977 - 28 ) ÷ 28] x 100 = 3389.29%
Formula
Percentage change = [(977 - 28) / 28] x 100
Subtract the new number by the original number
977 - 28 = 949
949 ÷ 28 = 33.892857142857146
33.892857142857146 x 100 = 3389.29%