-85.7% is the change from 902 to 129
Calculation steps:
[( 129 - 902 ) ÷ 902] x 100 = -85.7%
Formula
Percentage change = [(129 - 902) / 902] x 100
Subtract the new number by the original number
129 - 902 = -773
-773 ÷ 902 = -0.8569844789356984
-0.8569844789356984 x 100 = -85.7%