-67.42% is the change from 838 to 273
Calculation steps:
[( 273 - 838 ) ÷ 838] x 100 = -67.42%
Formula
Percentage change = [(273 - 838) / 838] x 100
Subtract the new number by the original number
273 - 838 = -565
-565 ÷ 838 = -0.6742243436754176
-0.6742243436754176 x 100 = -67.42%