-51.76% is the change from 910 to 439
Calculation steps:
[( 439 - 910 ) ÷ 910] x 100 = -51.76%
Formula
Percentage change = [(439 - 910) / 910] x 100
Subtract the new number by the original number
439 - 910 = -471
-471 ÷ 910 = -0.5175824175824176
-0.5175824175824176 x 100 = -51.76%