-48.15% is the change from 513 to 266
Calculation steps:
[( 266 - 513 ) ÷ 513] x 100 = -48.15%
Formula
Percentage change = [(266 - 513) / 513] x 100
Subtract the new number by the original number
266 - 513 = -247
-247 ÷ 513 = -0.48148148148148145
-0.48148148148148145 x 100 = -48.15%