123.32% is the change from 343 to 766
Calculation steps:
[( 766 - 343 ) ÷ 343] x 100 = 123.32%
Formula
Percentage change = [(766 - 343) / 343] x 100
Subtract the new number by the original number
766 - 343 = 423
423 ÷ 343 = 1.2332361516034986
1.2332361516034986 x 100 = 123.32%