-9.64% is the change from 685 to 619
Calculation steps:
[( 619 - 685 ) ÷ 685] x 100 = -9.64%
Formula
Percentage change = [(619 - 685) / 685] x 100
Subtract the new number by the original number
619 - 685 = -66
-66 ÷ 685 = -0.09635036496350365
-0.09635036496350365 x 100 = -9.64%