-54.3% is the change from 768 to 351
Calculation steps:
[( 351 - 768 ) ÷ 768] x 100 = -54.3%
Formula
Percentage change = [(351 - 768) / 768] x 100
Subtract the new number by the original number
351 - 768 = -417
-417 ÷ 768 = -0.54296875
-0.54296875 x 100 = -54.3%