-73.61% is the change from 917 to 242
Calculation steps:
[( 242 - 917 ) ÷ 917] x 100 = -73.61%
Formula
Percentage change = [(242 - 917) / 917] x 100
Subtract the new number by the original number
242 - 917 = -675
-675 ÷ 917 = -0.7360959651035986
-0.7360959651035986 x 100 = -73.61%