-55.37% is the change from 773 to 345
Calculation steps:
[( 345 - 773 ) ÷ 773] x 100 = -55.37%
Formula
Percentage change = [(345 - 773) / 773] x 100
Subtract the new number by the original number
345 - 773 = -428
-428 ÷ 773 = -0.553686934023286
-0.553686934023286 x 100 = -55.37%