-72.08% is the change from 838 to 234
Calculation steps:
[( 234 - 838 ) ÷ 838] x 100 = -72.08%
Formula
Percentage change = [(234 - 838) / 838] x 100
Subtract the new number by the original number
234 - 838 = -604
-604 ÷ 838 = -0.720763723150358
-0.720763723150358 x 100 = -72.08%