-84.78% is the change from 913 to 139
Calculation steps:
[( 139 - 913 ) ÷ 913] x 100 = -84.78%
Formula
Percentage change = [(139 - 913) / 913] x 100
Subtract the new number by the original number
139 - 913 = -774
-774 ÷ 913 = -0.8477546549835706
-0.8477546549835706 x 100 = -84.78%