0.15% is the change from 663 to 664
Calculation steps:
[( 664 - 663 ) ÷ 663] x 100 = 0.15%
Formula
Percentage change = [(664 - 663) / 663] x 100
Subtract the new number by the original number
664 - 663 = 1
1 ÷ 663 = 0.0015082956259426848
0.0015082956259426848 x 100 = 0.15%