-0.55% is the change from 917 to 912
Calculation steps:
[( 912 - 917 ) ÷ 917] x 100 = -0.55%
Formula
Percentage change = [(912 - 917) / 917] x 100
Subtract the new number by the original number
912 - 917 = -5
-5 ÷ 917 = -0.0054525627044711015
-0.0054525627044711015 x 100 = -0.55%