-53.57% is the change from 687 to 319
Calculation steps:
[( 319 - 687 ) ÷ 687] x 100 = -53.57%
Formula
Percentage change = [(319 - 687) / 687] x 100
Subtract the new number by the original number
319 - 687 = -368
-368 ÷ 687 = -0.5356622998544396
-0.5356622998544396 x 100 = -53.57%