-79.87% is the change from 939 to 189
Calculation steps:
[( 189 - 939 ) ÷ 939] x 100 = -79.87%
Formula
Percentage change = [(189 - 939) / 939] x 100
Subtract the new number by the original number
189 - 939 = -750
-750 ÷ 939 = -0.7987220447284346
-0.7987220447284346 x 100 = -79.87%