-1.88% is the change from 956 to 938
Calculation steps:
[( 938 - 956 ) ÷ 956] x 100 = -1.88%
Formula
Percentage change = [(938 - 956) / 956] x 100
Subtract the new number by the original number
938 - 956 = -18
-18 ÷ 956 = -0.01882845188284519
-0.01882845188284519 x 100 = -1.88%