2150% is the change from 14 to 315
Calculation steps:
[( 315 - 14 ) ÷ 14] x 100 = 2150%
Formula
Percentage change = [(315 - 14) / 14] x 100
Subtract the new number by the original number
315 - 14 = 301
301 ÷ 14 = 21.5
21.5 x 100 = 2150%
Example