-82.6% is the change from 408 to 71
Calculation steps:
[( 71 - 408 ) ÷ 408] x 100 = -82.6%
Formula
Percentage change = [(71 - 408) / 408] x 100
Subtract the new number by the original number
71 - 408 = -337
-337 ÷ 408 = -0.8259803921568627
-0.8259803921568627 x 100 = -82.6%