-55.63% is the change from 773 to 343
Calculation steps:
[( 343 - 773 ) ÷ 773] x 100 = -55.63%
Formula
Percentage change = [(343 - 773) / 773] x 100
Subtract the new number by the original number
343 - 773 = -430
-430 ÷ 773 = -0.55627425614489
-0.55627425614489 x 100 = -55.63%