-6.11% is the change from 999 to 938
Calculation steps:
[( 938 - 999 ) ÷ 999] x 100 = -6.11%
Formula
Percentage change = [(938 - 999) / 999] x 100
Subtract the new number by the original number
938 - 999 = -61
-61 ÷ 999 = -0.06106106106106106
-0.06106106106106106 x 100 = -6.11%