-51.59% is the change from 659 to 319
Calculation steps:
[( 319 - 659 ) ÷ 659] x 100 = -51.59%
Formula
Percentage change = [(319 - 659) / 659] x 100
Subtract the new number by the original number
319 - 659 = -340
-340 ÷ 659 = -0.5159332321699545
-0.5159332321699545 x 100 = -51.59%