-83.42% is the change from 742 to 123
Calculation steps:
[( 123 - 742 ) ÷ 742] x 100 = -83.42%
Formula
Percentage change = [(123 - 742) / 742] x 100
Subtract the new number by the original number
123 - 742 = -619
-619 ÷ 742 = -0.8342318059299192
-0.8342318059299192 x 100 = -83.42%