-73.63% is the change from 910 to 240
Calculation steps:
[( 240 - 910 ) ÷ 910] x 100 = -73.63%
Formula
Percentage change = [(240 - 910) / 910] x 100
Subtract the new number by the original number
240 - 910 = -670
-670 ÷ 910 = -0.7362637362637363
-0.7362637362637363 x 100 = -73.63%