3938.46% is the change from 13 to 525
Calculation steps:
[( 525 - 13 ) ÷ 13] x 100 = 3938.46%
Formula
Percentage change = [(525 - 13) / 13] x 100
Subtract the new number by the original number
525 - 13 = 512
512 ÷ 13 = 39.38461538461539
39.38461538461539 x 100 = 3938.46%