-36.62% is the change from 71 to 45
Calculation steps:
[( 45 - 71 ) ÷ 71] x 100 = -36.62%
Formula
Percentage change = [(45 - 71) / 71] x 100
Subtract the new number by the original number
45 - 71 = -26
-26 ÷ 71 = -0.36619718309859156
-0.36619718309859156 x 100 = -36.62%