-49.62% is the change from 528 to 266
Calculation steps:
[( 266 - 528 ) ÷ 528] x 100 = -49.62%
Formula
Percentage change = [(266 - 528) / 528] x 100
Subtract the new number by the original number
266 - 528 = -262
-262 ÷ 528 = -0.4962121212121212
-0.4962121212121212 x 100 = -49.62%