-6.5% is the change from 984 to 920
Calculation steps:
[( 920 - 984 ) ÷ 984] x 100 = -6.5%
Formula
Percentage change = [(920 - 984) / 984] x 100
Subtract the new number by the original number
920 - 984 = -64
-64 ÷ 984 = -0.06504065040650407
-0.06504065040650407 x 100 = -6.5%