-76.06% is the change from 71 to 17
Calculation steps:
[( 17 - 71 ) ÷ 71] x 100 = -76.06%
Formula
Percentage change = [(17 - 71) / 71] x 100
Subtract the new number by the original number
17 - 71 = -54
-54 ÷ 71 = -0.7605633802816901
-0.7605633802816901 x 100 = -76.06%