979.31% is the change from 87 to 939
Calculation steps:
[( 939 - 87 ) ÷ 87] x 100 = 979.31%
Formula
Percentage change = [(939 - 87) / 87] x 100
Subtract the new number by the original number
939 - 87 = 852
852 ÷ 87 = 9.793103448275861
9.793103448275861 x 100 = 979.31%