-43.4% is the change from 689 to 390
Calculation steps:
[( 390 - 689 ) ÷ 689] x 100 = -43.4%
Formula
Percentage change = [(390 - 689) / 689] x 100
Subtract the new number by the original number
390 - 689 = -299
-299 ÷ 689 = -0.4339622641509434
-0.4339622641509434 x 100 = -43.4%