-53.55% is the change from 971 to 451
Calculation steps:
[( 451 - 971 ) ÷ 971] x 100 = -53.55%
Formula
Percentage change = [(451 - 971) / 971] x 100
Subtract the new number by the original number
451 - 971 = -520
-520 ÷ 971 = -0.5355303810504635
-0.5355303810504635 x 100 = -53.55%