-85.87% is the change from 913 to 129
Calculation steps:
[( 129 - 913 ) ÷ 913] x 100 = -85.87%
Formula
Percentage change = [(129 - 913) / 913] x 100
Subtract the new number by the original number
129 - 913 = -784
-784 ÷ 913 = -0.8587075575027382
-0.8587075575027382 x 100 = -85.87%