-77.58% is the change from 223 to 50
Calculation steps:
[( 50 - 223 ) ÷ 223] x 100 = -77.58%
Formula
Percentage change = [(50 - 223) / 223] x 100
Subtract the new number by the original number
50 - 223 = -173
-173 ÷ 223 = -0.7757847533632287
-0.7757847533632287 x 100 = -77.58%