-51.44% is the change from 556 to 270
Calculation steps:
[( 270 - 556 ) ÷ 556] x 100 = -51.44%
Formula
Percentage change = [(270 - 556) / 556] x 100
Subtract the new number by the original number
270 - 556 = -286
-286 ÷ 556 = -0.5143884892086331
-0.5143884892086331 x 100 = -51.44%