-41.56% is the change from 77 to 45
Calculation steps:
[( 45 - 77 ) ÷ 77] x 100 = -41.56%
Formula
Percentage change = [(45 - 77) / 77] x 100
Subtract the new number by the original number
45 - 77 = -32
-32 ÷ 77 = -0.4155844155844156
-0.4155844155844156 x 100 = -41.56%