-60.62% is the change from 838 to 330
Calculation steps:
[( 330 - 838 ) ÷ 838] x 100 = -60.62%
Formula
Percentage change = [(330 - 838) / 838] x 100
Subtract the new number by the original number
330 - 838 = -508
-508 ÷ 838 = -0.6062052505966588
-0.6062052505966588 x 100 = -60.62%