-36.83% is the change from 543 to 343
Calculation steps:
[( 343 - 543 ) ÷ 543] x 100 = -36.83%
Formula
Percentage change = [(343 - 543) / 543] x 100
Subtract the new number by the original number
343 - 543 = -200
-200 ÷ 543 = -0.3683241252302026
-0.3683241252302026 x 100 = -36.83%