25% is the change from 276 to 345
Calculation steps:
[( 345 - 276 ) ÷ 276] x 100 = 25%
Formula
Percentage change = [(345 - 276) / 276] x 100
Subtract the new number by the original number
345 - 276 = 69
69 ÷ 276 = 0.25
0.25 x 100 = 25%
Example