-58.63% is the change from 834 to 345
Calculation steps:
[( 345 - 834 ) ÷ 834] x 100 = -58.63%
Formula
Percentage change = [(345 - 834) / 834] x 100
Subtract the new number by the original number
345 - 834 = -489
-489 ÷ 834 = -0.5863309352517986
-0.5863309352517986 x 100 = -58.63%