-51.86% is the change from 912 to 439
Calculation steps:
[( 439 - 912 ) ÷ 912] x 100 = -51.86%
Formula
Percentage change = [(439 - 912) / 912] x 100
Subtract the new number by the original number
439 - 912 = -473
-473 ÷ 912 = -0.518640350877193
-0.518640350877193 x 100 = -51.86%