-81.62% is the change from 789 to 145
Calculation steps:
[( 145 - 789 ) ÷ 789] x 100 = -81.62%
Formula
Percentage change = [(145 - 789) / 789] x 100
Subtract the new number by the original number
145 - 789 = -644
-644 ÷ 789 = -0.8162230671736375
-0.8162230671736375 x 100 = -81.62%