-77.23% is the change from 685 to 156
Calculation steps:
[( 156 - 685 ) ÷ 685] x 100 = -77.23%
Formula
Percentage change = [(156 - 685) / 685] x 100
Subtract the new number by the original number
156 - 685 = -529
-529 ÷ 685 = -0.7722627737226277
-0.7722627737226277 x 100 = -77.23%