65.58% is the change from 276 to 457
Calculation steps:
[( 457 - 276 ) ÷ 276] x 100 = 65.58%
Formula
Percentage change = [(457 - 276) / 276] x 100
Subtract the new number by the original number
457 - 276 = 181
181 ÷ 276 = 0.6557971014492754
0.6557971014492754 x 100 = 65.58%