-97.6% is the change from 541 to 13
Calculation steps:
[( 13 - 541 ) ÷ 541] x 100 = -97.6%
Formula
Percentage change = [(13 - 541) / 541] x 100
Subtract the new number by the original number
13 - 541 = -528
-528 ÷ 541 = -0.9759704251386322
-0.9759704251386322 x 100 = -97.6%