-44.67% is the change from 488 to 270
Calculation steps:
[( 270 - 488 ) ÷ 488] x 100 = -44.67%
Formula
Percentage change = [(270 - 488) / 488] x 100
Subtract the new number by the original number
270 - 488 = -218
-218 ÷ 488 = -0.44672131147540983
-0.44672131147540983 x 100 = -44.67%