-79% is the change from 938 to 197
Calculation steps:
[( 197 - 938 ) ÷ 938] x 100 = -79%
Formula
Percentage change = [(197 - 938) / 938] x 100
Subtract the new number by the original number
197 - 938 = -741
-741 ÷ 938 = -0.7899786780383795
-0.7899786780383795 x 100 = -79%