-58.72% is the change from 109 to 45
Calculation steps:
[( 45 - 109 ) ÷ 109] x 100 = -58.72%
Formula
Percentage change = [(45 - 109) / 109] x 100
Subtract the new number by the original number
45 - 109 = -64
-64 ÷ 109 = -0.5871559633027523
-0.5871559633027523 x 100 = -58.72%