-48.86% is the change from 528 to 270
Calculation steps:
[( 270 - 528 ) ÷ 528] x 100 = -48.86%
Formula
Percentage change = [(270 - 528) / 528] x 100
Subtract the new number by the original number
270 - 528 = -258
-258 ÷ 528 = -0.48863636363636365
-0.48863636363636365 x 100 = -48.86%