-3.9% is the change from 974 to 936
Calculation steps:
[( 936 - 974 ) ÷ 974] x 100 = -3.9%
Formula
Percentage change = [(936 - 974) / 974] x 100
Subtract the new number by the original number
936 - 974 = -38
-38 ÷ 974 = -0.039014373716632446
-0.039014373716632446 x 100 = -3.9%