-87.34% is the change from 79 to 10
Calculation steps:
[( 10 - 79 ) ÷ 79] x 100 = -87.34%
Formula
Percentage change = [(10 - 79) / 79] x 100
Subtract the new number by the original number
10 - 79 = -69
-69 ÷ 79 = -0.8734177215189873
-0.8734177215189873 x 100 = -87.34%