-82.34% is the change from 838 to 148
Calculation steps:
[( 148 - 838 ) ÷ 838] x 100 = -82.34%
Formula
Percentage change = [(148 - 838) / 838] x 100
Subtract the new number by the original number
148 - 838 = -690
-690 ÷ 838 = -0.8233890214797136
-0.8233890214797136 x 100 = -82.34%