2933.33% is the change from 15 to 455
Calculation steps:
[( 455 - 15 ) ÷ 15] x 100 = 2933.33%
Formula
Percentage change = [(455 - 15) / 15] x 100
Subtract the new number by the original number
455 - 15 = 440
440 ÷ 15 = 29.333333333333332
29.333333333333332 x 100 = 2933.33%