-79.77% is the change from 351 to 71
Calculation steps:
[( 71 - 351 ) ÷ 351] x 100 = -79.77%
Formula
Percentage change = [(71 - 351) / 351] x 100
Subtract the new number by the original number
71 - 351 = -280
-280 ÷ 351 = -0.7977207977207977
-0.7977207977207977 x 100 = -79.77%