-1.71% is the change from 936 to 920
Calculation steps:
[( 920 - 936 ) ÷ 936] x 100 = -1.71%
Formula
Percentage change = [(920 - 936) / 936] x 100
Subtract the new number by the original number
920 - 936 = -16
-16 ÷ 936 = -0.017094017094017096
-0.017094017094017096 x 100 = -1.71%