-83.6% is the change from 750 to 123
Calculation steps:
[( 123 - 750 ) ÷ 750] x 100 = -83.6%
Formula
Percentage change = [(123 - 750) / 750] x 100
Subtract the new number by the original number
123 - 750 = -627
-627 ÷ 750 = -0.836
-0.836 x 100 = -83.6%