-45.99% is the change from 511 to 276
Calculation steps:
[( 276 - 511 ) ÷ 511] x 100 = -45.99%
Formula
Percentage change = [(276 - 511) / 511] x 100
Subtract the new number by the original number
276 - 511 = -235
-235 ÷ 511 = -0.4598825831702544
-0.4598825831702544 x 100 = -45.99%