-12.79% is the change from 938 to 818
Calculation steps:
[( 818 - 938 ) ÷ 938] x 100 = -12.79%
Formula
Percentage change = [(818 - 938) / 938] x 100
Subtract the new number by the original number
818 - 938 = -120
-120 ÷ 938 = -0.1279317697228145
-0.1279317697228145 x 100 = -12.79%