-86.97% is the change from 545 to 71
Calculation steps:
[( 71 - 545 ) ÷ 545] x 100 = -86.97%
Formula
Percentage change = [(71 - 545) / 545] x 100
Subtract the new number by the original number
71 - 545 = -474
-474 ÷ 545 = -0.8697247706422019
-0.8697247706422019 x 100 = -86.97%