-90.4% is the change from 906 to 87
Calculation steps:
[( 87 - 906 ) ÷ 906] x 100 = -90.4%
Formula
Percentage change = [(87 - 906) / 906] x 100
Subtract the new number by the original number
87 - 906 = -819
-819 ÷ 906 = -0.9039735099337748
-0.9039735099337748 x 100 = -90.4%