-78.78% is the change from 938 to 199
Calculation steps:
[( 199 - 938 ) ÷ 938] x 100 = -78.78%
Formula
Percentage change = [(199 - 938) / 938] x 100
Subtract the new number by the original number
199 - 938 = -739
-739 ÷ 938 = -0.7878464818763327
-0.7878464818763327 x 100 = -78.78%