-89.04% is the change from 648 to 71
Calculation steps:
[( 71 - 648 ) ÷ 648] x 100 = -89.04%
Formula
Percentage change = [(71 - 648) / 648] x 100
Subtract the new number by the original number
71 - 648 = -577
-577 ÷ 648 = -0.8904320987654321
-0.8904320987654321 x 100 = -89.04%