-66.09% is the change from 233 to 79
Calculation steps:
[( 79 - 233 ) ÷ 233] x 100 = -66.09%
Formula
Percentage change = [(79 - 233) / 233] x 100
Subtract the new number by the original number
79 - 233 = -154
-154 ÷ 233 = -0.6609442060085837
-0.6609442060085837 x 100 = -66.09%