-91.61% is the change from 930 to 78
Calculation steps:
[( 78 - 930 ) ÷ 930] x 100 = -91.61%
Formula
Percentage change = [(78 - 930) / 930] x 100
Subtract the new number by the original number
78 - 930 = -852
-852 ÷ 930 = -0.9161290322580645
-0.9161290322580645 x 100 = -91.61%