-91.34% is the change from 912 to 79
Calculation steps:
[( 79 - 912 ) ÷ 912] x 100 = -91.34%
Formula
Percentage change = [(79 - 912) / 912] x 100
Subtract the new number by the original number
79 - 912 = -833
-833 ÷ 912 = -0.9133771929824561
-0.9133771929824561 x 100 = -91.34%