-59.6% is the change from 854 to 345
Calculation steps:
[( 345 - 854 ) ÷ 854] x 100 = -59.6%
Formula
Percentage change = [(345 - 854) / 854] x 100
Subtract the new number by the original number
345 - 854 = -509
-509 ÷ 854 = -0.5960187353629977
-0.5960187353629977 x 100 = -59.6%