-73.49% is the change from 913 to 242
Calculation steps:
[( 242 - 913 ) ÷ 913] x 100 = -73.49%
Formula
Percentage change = [(242 - 913) / 913] x 100
Subtract the new number by the original number
242 - 913 = -671
-671 ÷ 913 = -0.7349397590361446
-0.7349397590361446 x 100 = -73.49%