-6.52% is the change from 920 to 860
Calculation steps:
[( 860 - 920 ) ÷ 920] x 100 = -6.52%
Formula
Percentage change = [(860 - 920) / 920] x 100
Subtract the new number by the original number
860 - 920 = -60
-60 ÷ 920 = -0.06521739130434782
-0.06521739130434782 x 100 = -6.52%