-63.8% is the change from 859 to 311
Calculation steps:
[( 311 - 859 ) ÷ 859] x 100 = -63.8%
Formula
Percentage change = [(311 - 859) / 859] x 100
Subtract the new number by the original number
311 - 859 = -548
-548 ÷ 859 = -0.6379511059371362
-0.6379511059371362 x 100 = -63.8%