-64.2% is the change from 838 to 300
Calculation steps:
[( 300 - 838 ) ÷ 838] x 100 = -64.2%
Formula
Percentage change = [(300 - 838) / 838] x 100
Subtract the new number by the original number
300 - 838 = -538
-538 ÷ 838 = -0.6420047732696897
-0.6420047732696897 x 100 = -64.2%