-65.4% is the change from 971 to 336
Calculation steps:
[( 336 - 971 ) ÷ 971] x 100 = -65.4%
Formula
Percentage change = [(336 - 971) / 971] x 100
Subtract the new number by the original number
336 - 971 = -635
-635 ÷ 971 = -0.6539649845520082
-0.6539649845520082 x 100 = -65.4%