-65.55% is the change from 897 to 309
Calculation steps:
[( 309 - 897 ) ÷ 897] x 100 = -65.55%
Formula
Percentage change = [(309 - 897) / 897] x 100
Subtract the new number by the original number
309 - 897 = -588
-588 ÷ 897 = -0.6555183946488294
-0.6555183946488294 x 100 = -65.55%