-11.34% is the change from 688 to 610
Calculation steps:
[( 610 - 688 ) ÷ 688] x 100 = -11.34%
Formula
Percentage change = [(610 - 688) / 688] x 100
Subtract the new number by the original number
610 - 688 = -78
-78 ÷ 688 = -0.11337209302325581
-0.11337209302325581 x 100 = -11.34%