-90.52% is the change from 907 to 86
Calculation steps:
[( 86 - 907 ) ÷ 907] x 100 = -90.52%
Formula
Percentage change = [(86 - 907) / 907] x 100
Subtract the new number by the original number
86 - 907 = -821
-821 ÷ 907 = -0.9051819184123484
-0.9051819184123484 x 100 = -90.52%