-2.04% is the change from 931 to 912
Calculation steps:
[( 912 - 931 ) ÷ 931] x 100 = -2.04%
Formula
Percentage change = [(912 - 931) / 931] x 100
Subtract the new number by the original number
912 - 931 = -19
-19 ÷ 931 = -0.02040816326530612
-0.02040816326530612 x 100 = -2.04%