-15.08% is the change from 789 to 670
Calculation steps:
[( 670 - 789 ) ÷ 789] x 100 = -15.08%
Formula
Percentage change = [(670 - 789) / 789] x 100
Subtract the new number by the original number
670 - 789 = -119
-119 ÷ 789 = -0.15082382762991128
-0.15082382762991128 x 100 = -15.08%