-59.29% is the change from 850 to 346
Calculation steps:
[( 346 - 850 ) ÷ 850] x 100 = -59.29%
Formula
Percentage change = [(346 - 850) / 850] x 100
Subtract the new number by the original number
346 - 850 = -504
-504 ÷ 850 = -0.5929411764705882
-0.5929411764705882 x 100 = -59.29%