-78.91% is the change from 787 to 166
Calculation steps:
[( 166 - 787 ) ÷ 787] x 100 = -78.91%
Formula
Percentage change = [(166 - 787) / 787] x 100
Subtract the new number by the original number
166 - 787 = -621
-621 ÷ 787 = -0.7890724269377383
-0.7890724269377383 x 100 = -78.91%