-20.91% is the change from 789 to 624
Calculation steps:
[( 624 - 789 ) ÷ 789] x 100 = -20.91%
Formula
Percentage change = [(624 - 789) / 789] x 100
Subtract the new number by the original number
624 - 789 = -165
-165 ÷ 789 = -0.20912547528517111
-0.20912547528517111 x 100 = -20.91%