-74.94% is the change from 838 to 210
Calculation steps:
[( 210 - 838 ) ÷ 838] x 100 = -74.94%
Formula
Percentage change = [(210 - 838) / 838] x 100
Subtract the new number by the original number
210 - 838 = -628
-628 ÷ 838 = -0.7494033412887828
-0.7494033412887828 x 100 = -74.94%