-63.16% is the change from 923 to 340
Calculation steps:
[( 340 - 923 ) ÷ 923] x 100 = -63.16%
Formula
Percentage change = [(340 - 923) / 923] x 100
Subtract the new number by the original number
340 - 923 = -583
-583 ÷ 923 = -0.6316359696641387
-0.6316359696641387 x 100 = -63.16%