-36.65% is the change from 543 to 344
Calculation steps:
[( 344 - 543 ) ÷ 543] x 100 = -36.65%
Formula
Percentage change = [(344 - 543) / 543] x 100
Subtract the new number by the original number
344 - 543 = -199
-199 ÷ 543 = -0.3664825046040516
-0.3664825046040516 x 100 = -36.65%