-66.52% is the change from 233 to 78
Calculation steps:
[( 78 - 233 ) ÷ 233] x 100 = -66.52%
Formula
Percentage change = [(78 - 233) / 233] x 100
Subtract the new number by the original number
78 - 233 = -155
-155 ÷ 233 = -0.6652360515021459
-0.6652360515021459 x 100 = -66.52%