-13.65% is the change from 938 to 810
Calculation steps:
[( 810 - 938 ) ÷ 938] x 100 = -13.65%
Formula
Percentage change = [(810 - 938) / 938] x 100
Subtract the new number by the original number
810 - 938 = -128
-128 ÷ 938 = -0.13646055437100213
-0.13646055437100213 x 100 = -13.65%