-3.1% is the change from 936 to 907
Calculation steps:
[( 907 - 936 ) ÷ 936] x 100 = -3.1%
Formula
Percentage change = [(907 - 936) / 936] x 100
Subtract the new number by the original number
907 - 936 = -29
-29 ÷ 936 = -0.030982905982905984
-0.030982905982905984 x 100 = -3.1%