-97.61% is the change from 545 to 13
Calculation steps:
[( 13 - 545 ) ÷ 545] x 100 = -97.61%
Formula
Percentage change = [(13 - 545) / 545] x 100
Subtract the new number by the original number
13 - 545 = -532
-532 ÷ 545 = -0.9761467889908257
-0.9761467889908257 x 100 = -97.61%