-78.79% is the change from 33 to 7
Calculation steps:
[( 7 - 33 ) ÷ 33] x 100 = -78.79%
Formula
Percentage change = [(7 - 33) / 33] x 100
Subtract the new number by the original number
7 - 33 = -26
-26 ÷ 33 = -0.7878787878787878
-0.7878787878787878 x 100 = -78.79%