-65.09% is the change from 971 to 339
Calculation steps:
[( 339 - 971 ) ÷ 971] x 100 = -65.09%
Formula
Percentage change = [(339 - 971) / 971] x 100
Subtract the new number by the original number
339 - 971 = -632
-632 ÷ 971 = -0.650875386199794
-0.650875386199794 x 100 = -65.09%