-17.78% is the change from 45 to 37
Calculation steps:
[( 37 - 45 ) ÷ 45] x 100 = -17.78%
Formula
Percentage change = [(37 - 45) / 45] x 100
Subtract the new number by the original number
37 - 45 = -8
-8 ÷ 45 = -0.17777777777777778
-0.17777777777777778 x 100 = -17.78%