55.87% is the change from 494 to 770
Calculation steps:
[( 770 - 494 ) ÷ 494] x 100 = 55.87%
Formula
Percentage change = [(770 - 494) / 494] x 100
Subtract the new number by the original number
770 - 494 = 276
276 ÷ 494 = 0.5587044534412956
0.5587044534412956 x 100 = 55.87%