-62.49% is the change from 845 to 317
Calculation steps:
[( 317 - 845 ) ÷ 845] x 100 = -62.49%
Formula
Percentage change = [(317 - 845) / 845] x 100
Subtract the new number by the original number
317 - 845 = -528
-528 ÷ 845 = -0.6248520710059171
-0.6248520710059171 x 100 = -62.49%