-91.58% is the change from 938 to 79
Calculation steps:
[( 79 - 938 ) ÷ 938] x 100 = -91.58%
Formula
Percentage change = [(79 - 938) / 938] x 100
Subtract the new number by the original number
79 - 938 = -859
-859 ÷ 938 = -0.9157782515991472
-0.9157782515991472 x 100 = -91.58%