-3.38% is the change from 917 to 886
Calculation steps:
[( 886 - 917 ) ÷ 917] x 100 = -3.38%
Formula
Percentage change = [(886 - 917) / 917] x 100
Subtract the new number by the original number
886 - 917 = -31
-31 ÷ 917 = -0.03380588876772083
-0.03380588876772083 x 100 = -3.38%