2813.33% is the change from 15 to 437
Calculation steps:
[( 437 - 15 ) ÷ 15] x 100 = 2813.33%
Formula
Percentage change = [(437 - 15) / 15] x 100
Subtract the new number by the original number
437 - 15 = 422
422 ÷ 15 = 28.133333333333333
28.133333333333333 x 100 = 2813.33%