-57.3% is the change from 808 to 345
Calculation steps:
[( 345 - 808 ) ÷ 808] x 100 = -57.3%
Formula
Percentage change = [(345 - 808) / 808] x 100
Subtract the new number by the original number
345 - 808 = -463
-463 ÷ 808 = -0.573019801980198
-0.573019801980198 x 100 = -57.3%