-96.3% is the change from 351 to 13
Calculation steps:
[( 13 - 351 ) ÷ 351] x 100 = -96.3%
Formula
Percentage change = [(13 - 351) / 351] x 100
Subtract the new number by the original number
13 - 351 = -338
-338 ÷ 351 = -0.9629629629629629
-0.9629629629629629 x 100 = -96.3%