-90.64% is the change from 929 to 87
Calculation steps:
[( 87 - 929 ) ÷ 929] x 100 = -90.64%
Formula
Percentage change = [(87 - 929) / 929] x 100
Subtract the new number by the original number
87 - 929 = -842
-842 ÷ 929 = -0.9063509149623251
-0.9063509149623251 x 100 = -90.64%