-22% is the change from 300 to 234
Calculation steps:
[( 234 - 300 ) ÷ 300] x 100 = -22%
Formula
Percentage change = [(234 - 300) / 300] x 100
Subtract the new number by the original number
234 - 300 = -66
-66 ÷ 300 = -0.22
-0.22 x 100 = -22%
Example