-50.6% is the change from 834 to 412
Calculation steps:
[( 412 - 834 ) ÷ 834] x 100 = -50.6%
Formula
Percentage change = [(412 - 834) / 834] x 100
Subtract the new number by the original number
412 - 834 = -422
-422 ÷ 834 = -0.5059952038369304
-0.5059952038369304 x 100 = -50.6%