-59.31% is the change from 843 to 343
Calculation steps:
[( 343 - 843 ) ÷ 843] x 100 = -59.31%
Formula
Percentage change = [(343 - 843) / 843] x 100
Subtract the new number by the original number
343 - 843 = -500
-500 ÷ 843 = -0.5931198102016607
-0.5931198102016607 x 100 = -59.31%