-78.69% is the change from 685 to 146
Calculation steps:
[( 146 - 685 ) ÷ 685] x 100 = -78.69%
Formula
Percentage change = [(146 - 685) / 685] x 100
Subtract the new number by the original number
146 - 685 = -539
-539 ÷ 685 = -0.7868613138686131
-0.7868613138686131 x 100 = -78.69%