-2.64% is the change from 683 to 665
Calculation steps:
[( 665 - 683 ) ÷ 683] x 100 = -2.64%
Formula
Percentage change = [(665 - 683) / 683] x 100
Subtract the new number by the original number
665 - 683 = -18
-18 ÷ 683 = -0.02635431918008785
-0.02635431918008785 x 100 = -2.64%