-91.43% is the change from 910 to 78
Calculation steps:
[( 78 - 910 ) ÷ 910] x 100 = -91.43%
Formula
Percentage change = [(78 - 910) / 910] x 100
Subtract the new number by the original number
78 - 910 = -832
-832 ÷ 910 = -0.9142857142857143
-0.9142857142857143 x 100 = -91.43%