-62.05% is the change from 838 to 318
Calculation steps:
[( 318 - 838 ) ÷ 838] x 100 = -62.05%
Formula
Percentage change = [(318 - 838) / 838] x 100
Subtract the new number by the original number
318 - 838 = -520
-520 ÷ 838 = -0.6205250596658711
-0.6205250596658711 x 100 = -62.05%