-38.85% is the change from 139 to 85
Calculation steps:
[( 85 - 139 ) ÷ 139] x 100 = -38.85%
Formula
Percentage change = [(85 - 139) / 139] x 100
Subtract the new number by the original number
85 - 139 = -54
-54 ÷ 139 = -0.38848920863309355
-0.38848920863309355 x 100 = -38.85%