-4.76% is the change from 231 to 220
Calculation steps:
[( 220 - 231 ) ÷ 231] x 100 = -4.76%
Formula
Percentage change = [(220 - 231) / 231] x 100
Subtract the new number by the original number
220 - 231 = -11
-11 ÷ 231 = -0.047619047619047616
-0.047619047619047616 x 100 = -4.76%