2373.33% is the change from 15 to 371
Calculation steps:
[( 371 - 15 ) ÷ 15] x 100 = 2373.33%
Formula
Percentage change = [(371 - 15) / 15] x 100
Subtract the new number by the original number
371 - 15 = 356
356 ÷ 15 = 23.733333333333334
23.733333333333334 x 100 = 2373.33%