-43.49% is the change from 768 to 434
Calculation steps:
[( 434 - 768 ) ÷ 768] x 100 = -43.49%
Formula
Percentage change = [(434 - 768) / 768] x 100
Subtract the new number by the original number
434 - 768 = -334
-334 ÷ 768 = -0.4348958333333333
-0.4348958333333333 x 100 = -43.49%