-91.81% is the change from 830 to 68
Calculation steps:
[( 68 - 830 ) ÷ 830] x 100 = -91.81%
Formula
Percentage change = [(68 - 830) / 830] x 100
Subtract the new number by the original number
68 - 830 = -762
-762 ÷ 830 = -0.9180722891566265
-0.9180722891566265 x 100 = -91.81%