-55.2% is the change from 683 to 306
Calculation steps:
[( 306 - 683 ) ÷ 683] x 100 = -55.2%
Formula
Percentage change = [(306 - 683) / 683] x 100
Subtract the new number by the original number
306 - 683 = -377
-377 ÷ 683 = -0.5519765739385066
-0.5519765739385066 x 100 = -55.2%