-0.6% is the change from 663 to 659
Calculation steps:
[( 659 - 663 ) ÷ 663] x 100 = -0.6%
Formula
Percentage change = [(659 - 663) / 663] x 100
Subtract the new number by the original number
659 - 663 = -4
-4 ÷ 663 = -0.006033182503770739
-0.006033182503770739 x 100 = -0.6%