-1.61% is the change from 931 to 916
Calculation steps:
[( 916 - 931 ) ÷ 931] x 100 = -1.61%
Formula
Percentage change = [(916 - 931) / 931] x 100
Subtract the new number by the original number
916 - 931 = -15
-15 ÷ 931 = -0.01611170784103115
-0.01611170784103115 x 100 = -1.61%