-83.05% is the change from 419 to 71
Calculation steps:
[( 71 - 419 ) ÷ 419] x 100 = -83.05%
Formula
Percentage change = [(71 - 419) / 419] x 100
Subtract the new number by the original number
71 - 419 = -348
-348 ÷ 419 = -0.8305489260143198
-0.8305489260143198 x 100 = -83.05%