-63.1% is the change from 859 to 317
Calculation steps:
[( 317 - 859 ) ÷ 859] x 100 = -63.1%
Formula
Percentage change = [(317 - 859) / 859] x 100
Subtract the new number by the original number
317 - 859 = -542
-542 ÷ 859 = -0.6309662398137369
-0.6309662398137369 x 100 = -63.1%