-79.26% is the change from 270 to 56
Calculation steps:
[( 56 - 270 ) ÷ 270] x 100 = -79.26%
Formula
Percentage change = [(56 - 270) / 270] x 100
Subtract the new number by the original number
56 - 270 = -214
-214 ÷ 270 = -0.7925925925925926
-0.7925925925925926 x 100 = -79.26%