-65.78% is the change from 903 to 309
Calculation steps:
[( 309 - 903 ) ÷ 903] x 100 = -65.78%
Formula
Percentage change = [(309 - 903) / 903] x 100
Subtract the new number by the original number
309 - 903 = -594
-594 ÷ 903 = -0.6578073089700996
-0.6578073089700996 x 100 = -65.78%