-23.86% is the change from 306 to 233
Calculation steps:
[( 233 - 306 ) ÷ 306] x 100 = -23.86%
Formula
Percentage change = [(233 - 306) / 306] x 100
Subtract the new number by the original number
233 - 306 = -73
-73 ÷ 306 = -0.238562091503268
-0.238562091503268 x 100 = -23.86%