-55.36% is the change from 690 to 308
Calculation steps:
[( 308 - 690 ) ÷ 690] x 100 = -55.36%
Formula
Percentage change = [(308 - 690) / 690] x 100
Subtract the new number by the original number
308 - 690 = -382
-382 ÷ 690 = -0.553623188405797
-0.553623188405797 x 100 = -55.36%