-73.36% is the change from 837 to 223
Calculation steps:
[( 223 - 837 ) ÷ 837] x 100 = -73.36%
Formula
Percentage change = [(223 - 837) / 837] x 100
Subtract the new number by the original number
223 - 837 = -614
-614 ÷ 837 = -0.7335722819593787
-0.7335722819593787 x 100 = -73.36%