-50.76% is the change from 528 to 260
Calculation steps:
[( 260 - 528 ) ÷ 528] x 100 = -50.76%
Formula
Percentage change = [(260 - 528) / 528] x 100
Subtract the new number by the original number
260 - 528 = -268
-268 ÷ 528 = -0.5075757575757576
-0.5075757575757576 x 100 = -50.76%