-55.51% is the change from 917 to 408
Calculation steps:
[( 408 - 917 ) ÷ 917] x 100 = -55.51%
Formula
Percentage change = [(408 - 917) / 917] x 100
Subtract the new number by the original number
408 - 917 = -509
-509 ÷ 917 = -0.5550708833151581
-0.5550708833151581 x 100 = -55.51%