-82.22% is the change from 45 to 8
Calculation steps:
[( 8 - 45 ) ÷ 45] x 100 = -82.22%
Formula
Percentage change = [(8 - 45) / 45] x 100
Subtract the new number by the original number
8 - 45 = -37
-37 ÷ 45 = -0.8222222222222222
-0.8222222222222222 x 100 = -82.22%