-51.33% is the change from 902 to 439
Calculation steps:
[( 439 - 902 ) ÷ 902] x 100 = -51.33%
Formula
Percentage change = [(439 - 902) / 902] x 100
Subtract the new number by the original number
439 - 902 = -463
-463 ÷ 902 = -0.5133037694013304
-0.5133037694013304 x 100 = -51.33%