-51.88% is the change from 931 to 448
Calculation steps:
[( 448 - 931 ) ÷ 931] x 100 = -51.88%
Formula
Percentage change = [(448 - 931) / 931] x 100
Subtract the new number by the original number
448 - 931 = -483
-483 ÷ 931 = -0.518796992481203
-0.518796992481203 x 100 = -51.88%