-0.3% is the change from 664 to 662
Calculation steps:
[( 662 - 664 ) ÷ 664] x 100 = -0.3%
Formula
Percentage change = [(662 - 664) / 664] x 100
Subtract the new number by the original number
662 - 664 = -2
-2 ÷ 664 = -0.0030120481927710845
-0.0030120481927710845 x 100 = -0.3%