-2.25% is the change from 668 to 653
Calculation steps:
[( 653 - 668 ) ÷ 668] x 100 = -2.25%
Formula
Percentage change = [(653 - 668) / 668] x 100
Subtract the new number by the original number
653 - 668 = -15
-15 ÷ 668 = -0.02245508982035928
-0.02245508982035928 x 100 = -2.25%