-43.68% is the change from 609 to 343
Calculation steps:
[( 343 - 609 ) ÷ 609] x 100 = -43.68%
Formula
Percentage change = [(343 - 609) / 609] x 100
Subtract the new number by the original number
343 - 609 = -266
-266 ÷ 609 = -0.4367816091954023
-0.4367816091954023 x 100 = -43.68%