-72.72% is the change from 766 to 209
Calculation steps:
[( 209 - 766 ) ÷ 766] x 100 = -72.72%
Formula
Percentage change = [(209 - 766) / 766] x 100
Subtract the new number by the original number
209 - 766 = -557
-557 ÷ 766 = -0.7271540469973891
-0.7271540469973891 x 100 = -72.72%