-76.86% is the change from 631 to 146
Calculation steps:
[( 146 - 631 ) ÷ 631] x 100 = -76.86%
Formula
Percentage change = [(146 - 631) / 631] x 100
Subtract the new number by the original number
146 - 631 = -485
-485 ÷ 631 = -0.768621236133122
-0.768621236133122 x 100 = -76.86%