-67.35% is the change from 971 to 317
Calculation steps:
[( 317 - 971 ) ÷ 971] x 100 = -67.35%
Formula
Percentage change = [(317 - 971) / 971] x 100
Subtract the new number by the original number
317 - 971 = -654
-654 ÷ 971 = -0.6735324407826982
-0.6735324407826982 x 100 = -67.35%