-60.07% is the change from 859 to 343
Calculation steps:
[( 343 - 859 ) ÷ 859] x 100 = -60.07%
Formula
Percentage change = [(343 - 859) / 859] x 100
Subtract the new number by the original number
343 - 859 = -516
-516 ÷ 859 = -0.6006984866123399
-0.6006984866123399 x 100 = -60.07%