864.37% is the change from 87 to 839
Calculation steps:
[( 839 - 87 ) ÷ 87] x 100 = 864.37%
Formula
Percentage change = [(839 - 87) / 87] x 100
Subtract the new number by the original number
839 - 87 = 752
752 ÷ 87 = 8.64367816091954
8.64367816091954 x 100 = 864.37%