-16.52% is the change from 920 to 768
Calculation steps:
[( 768 - 920 ) ÷ 920] x 100 = -16.52%
Formula
Percentage change = [(768 - 920) / 920] x 100
Subtract the new number by the original number
768 - 920 = -152
-152 ÷ 920 = -0.16521739130434782
-0.16521739130434782 x 100 = -16.52%