-71.2% is the change from 823 to 237
Calculation steps:
[( 237 - 823 ) ÷ 823] x 100 = -71.2%
Formula
Percentage change = [(237 - 823) / 823] x 100
Subtract the new number by the original number
237 - 823 = -586
-586 ÷ 823 = -0.7120291616038882
-0.7120291616038882 x 100 = -71.2%