407.35% is the change from 68 to 345
Calculation steps:
[( 345 - 68 ) ÷ 68] x 100 = 407.35%
Formula
Percentage change = [(345 - 68) / 68] x 100
Subtract the new number by the original number
345 - 68 = 277
277 ÷ 68 = 4.073529411764706
4.073529411764706 x 100 = 407.35%