-7.14% is the change from 938 to 871
Calculation steps:
[( 871 - 938 ) ÷ 938] x 100 = -7.14%
Formula
Percentage change = [(871 - 938) / 938] x 100
Subtract the new number by the original number
871 - 938 = -67
-67 ÷ 938 = -0.07142857142857142
-0.07142857142857142 x 100 = -7.14%