-71.99% is the change from 789 to 221
Calculation steps:
[( 221 - 789 ) ÷ 789] x 100 = -71.99%
Formula
Percentage change = [(221 - 789) / 789] x 100
Subtract the new number by the original number
221 - 789 = -568
-568 ÷ 789 = -0.7198986058301647
-0.7198986058301647 x 100 = -71.99%