11400% is the change from 3 to 345
Calculation steps:
[( 345 - 3 ) ÷ 3] x 100 = 11400%
Formula
Percentage change = [(345 - 3) / 3] x 100
Subtract the new number by the original number
345 - 3 = 342
342 ÷ 3 = 114
114 x 100 = 11400%
Example