-20.61% is the change from 684 to 543
Calculation steps:
[( 543 - 684 ) ÷ 684] x 100 = -20.61%
Formula
Percentage change = [(543 - 684) / 684] x 100
Subtract the new number by the original number
543 - 684 = -141
-141 ÷ 684 = -0.20614035087719298
-0.20614035087719298 x 100 = -20.61%