-73.3% is the change from 839 to 224
Calculation steps:
[( 224 - 839 ) ÷ 839] x 100 = -73.3%
Formula
Percentage change = [(224 - 839) / 839] x 100
Subtract the new number by the original number
224 - 839 = -615
-615 ÷ 839 = -0.733015494636472
-0.733015494636472 x 100 = -73.3%