-55.59% is the change from 689 to 306
Calculation steps:
[( 306 - 689 ) ÷ 689] x 100 = -55.59%
Formula
Percentage change = [(306 - 689) / 689] x 100
Subtract the new number by the original number
306 - 689 = -383
-383 ÷ 689 = -0.555878084179971
-0.555878084179971 x 100 = -55.59%