-49.78% is the change from 689 to 346
Calculation steps:
[( 346 - 689 ) ÷ 689] x 100 = -49.78%
Formula
Percentage change = [(346 - 689) / 689] x 100
Subtract the new number by the original number
346 - 689 = -343
-343 ÷ 689 = -0.49782293178519593
-0.49782293178519593 x 100 = -49.78%