-75.98% is the change from 991 to 238
Calculation steps:
[( 238 - 991 ) ÷ 991] x 100 = -75.98%
Formula
Percentage change = [(238 - 991) / 991] x 100
Subtract the new number by the original number
238 - 991 = -753
-753 ÷ 991 = -0.7598385469223007
-0.7598385469223007 x 100 = -75.98%