-35.16% is the change from 529 to 343
Calculation steps:
[( 343 - 529 ) ÷ 529] x 100 = -35.16%
Formula
Percentage change = [(343 - 529) / 529] x 100
Subtract the new number by the original number
343 - 529 = -186
-186 ÷ 529 = -0.3516068052930057
-0.3516068052930057 x 100 = -35.16%