-92.77% is the change from 830 to 60
Calculation steps:
[( 60 - 830 ) ÷ 830] x 100 = -92.77%
Formula
Percentage change = [(60 - 830) / 830] x 100
Subtract the new number by the original number
60 - 830 = -770
-770 ÷ 830 = -0.927710843373494
-0.927710843373494 x 100 = -92.77%