-27.57% is the change from 838 to 607
Calculation steps:
[( 607 - 838 ) ÷ 838] x 100 = -27.57%
Formula
Percentage change = [(607 - 838) / 838] x 100
Subtract the new number by the original number
607 - 838 = -231
-231 ÷ 838 = -0.2756563245823389
-0.2756563245823389 x 100 = -27.57%