100.29% is the change from 344 to 689
Calculation steps:
[( 689 - 344 ) ÷ 344] x 100 = 100.29%
Formula
Percentage change = [(689 - 344) / 344] x 100
Subtract the new number by the original number
689 - 344 = 345
345 ÷ 344 = 1.002906976744186
1.002906976744186 x 100 = 100.29%