-1.48% is the change from 674 to 664
Calculation steps:
[( 664 - 674 ) ÷ 674] x 100 = -1.48%
Formula
Percentage change = [(664 - 674) / 674] x 100
Subtract the new number by the original number
664 - 674 = -10
-10 ÷ 674 = -0.01483679525222552
-0.01483679525222552 x 100 = -1.48%