-92.31% is the change from 910 to 70
Calculation steps:
[( 70 - 910 ) ÷ 910] x 100 = -92.31%
Formula
Percentage change = [(70 - 910) / 910] x 100
Subtract the new number by the original number
70 - 910 = -840
-840 ÷ 910 = -0.9230769230769231
-0.9230769230769231 x 100 = -92.31%