-51.7% is the change from 147 to 71
Calculation steps:
[( 71 - 147 ) ÷ 147] x 100 = -51.7%
Formula
Percentage change = [(71 - 147) / 147] x 100
Subtract the new number by the original number
71 - 147 = -76
-76 ÷ 147 = -0.5170068027210885
-0.5170068027210885 x 100 = -51.7%