-59.81% is the change from 851 to 342
Calculation steps:
[( 342 - 851 ) ÷ 851] x 100 = -59.81%
Formula
Percentage change = [(342 - 851) / 851] x 100
Subtract the new number by the original number
342 - 851 = -509
-509 ÷ 851 = -0.5981198589894242
-0.5981198589894242 x 100 = -59.81%