-15.99% is the change from 938 to 788
Calculation steps:
[( 788 - 938 ) ÷ 938] x 100 = -15.99%
Formula
Percentage change = [(788 - 938) / 938] x 100
Subtract the new number by the original number
788 - 938 = -150
-150 ÷ 938 = -0.15991471215351813
-0.15991471215351813 x 100 = -15.99%