-29.61% is the change from 331 to 233
Calculation steps:
[( 233 - 331 ) ÷ 331] x 100 = -29.61%
Formula
Percentage change = [(233 - 331) / 331] x 100
Subtract the new number by the original number
233 - 331 = -98
-98 ÷ 331 = -0.29607250755287007
-0.29607250755287007 x 100 = -29.61%