-81.22% is the change from 378 to 71
Calculation steps:
[( 71 - 378 ) ÷ 378] x 100 = -81.22%
Formula
Percentage change = [(71 - 378) / 378] x 100
Subtract the new number by the original number
71 - 378 = -307
-307 ÷ 378 = -0.8121693121693122
-0.8121693121693122 x 100 = -81.22%