85.2% is the change from 277 to 513
Calculation steps:
[( 513 - 277 ) ÷ 277] x 100 = 85.2%
Formula
Percentage change = [(513 - 277) / 277] x 100
Subtract the new number by the original number
513 - 277 = 236
236 ÷ 277 = 0.851985559566787
0.851985559566787 x 100 = 85.2%