-90.38% is the change from 239 to 23
Calculation steps:
[( 23 - 239 ) ÷ 239] x 100 = -90.38%
Formula
Percentage change = [(23 - 239) / 239] x 100
Subtract the new number by the original number
23 - 239 = -216
-216 ÷ 239 = -0.9037656903765691
-0.9037656903765691 x 100 = -90.38%