102.38% is the change from 336 to 680
Calculation steps:
[( 680 - 336 ) ÷ 336] x 100 = 102.38%
Formula
Percentage change = [(680 - 336) / 336] x 100
Subtract the new number by the original number
680 - 336 = 344
344 ÷ 336 = 1.0238095238095237
1.0238095238095237 x 100 = 102.38%