-49.33% is the change from 971 to 492
Calculation steps:
[( 492 - 971 ) ÷ 971] x 100 = -49.33%
Formula
Percentage change = [(492 - 971) / 971] x 100
Subtract the new number by the original number
492 - 971 = -479
-479 ÷ 971 = -0.4933058702368692
-0.4933058702368692 x 100 = -49.33%