-84.56% is the change from 900 to 139
Calculation steps:
[( 139 - 900 ) ÷ 900] x 100 = -84.56%
Formula
Percentage change = [(139 - 900) / 900] x 100
Subtract the new number by the original number
139 - 900 = -761
-761 ÷ 900 = -0.8455555555555555
-0.8455555555555555 x 100 = -84.56%