-20.9% is the change from 689 to 545
Calculation steps:
[( 545 - 689 ) ÷ 689] x 100 = -20.9%
Formula
Percentage change = [(545 - 689) / 689] x 100
Subtract the new number by the original number
545 - 689 = -144
-144 ÷ 689 = -0.20899854862119013
-0.20899854862119013 x 100 = -20.9%