-71.06% is the change from 819 to 237
Calculation steps:
[( 237 - 819 ) ÷ 819] x 100 = -71.06%
Formula
Percentage change = [(237 - 819) / 819] x 100
Subtract the new number by the original number
237 - 819 = -582
-582 ÷ 819 = -0.7106227106227107
-0.7106227106227107 x 100 = -71.06%