-85.1% is the change from 906 to 135
Calculation steps:
[( 135 - 906 ) ÷ 906] x 100 = -85.1%
Formula
Percentage change = [(135 - 906) / 906] x 100
Subtract the new number by the original number
135 - 906 = -771
-771 ÷ 906 = -0.8509933774834437
-0.8509933774834437 x 100 = -85.1%