-77.91% is the change from 611 to 135
Calculation steps:
[( 135 - 611 ) ÷ 611] x 100 = -77.91%
Formula
Percentage change = [(135 - 611) / 611] x 100
Subtract the new number by the original number
135 - 611 = -476
-476 ÷ 611 = -0.779050736497545
-0.779050736497545 x 100 = -77.91%