-34.93% is the change from 939 to 611
Calculation steps:
[( 611 - 939 ) ÷ 939] x 100 = -34.93%
Formula
Percentage change = [(611 - 939) / 939] x 100
Subtract the new number by the original number
611 - 939 = -328
-328 ÷ 939 = -0.34930777422790205
-0.34930777422790205 x 100 = -34.93%