-55.5% is the change from 764 to 340
Calculation steps:
[( 340 - 764 ) ÷ 764] x 100 = -55.5%
Formula
Percentage change = [(340 - 764) / 764] x 100
Subtract the new number by the original number
340 - 764 = -424
-424 ÷ 764 = -0.5549738219895288
-0.5549738219895288 x 100 = -55.5%