-51.8% is the change from 917 to 442
Calculation steps:
[( 442 - 917 ) ÷ 917] x 100 = -51.8%
Formula
Percentage change = [(442 - 917) / 917] x 100
Subtract the new number by the original number
442 - 917 = -475
-475 ÷ 917 = -0.5179934569247546
-0.5179934569247546 x 100 = -51.8%