97.77% is the change from 494 to 977
Calculation steps:
[( 977 - 494 ) ÷ 494] x 100 = 97.77%
Formula
Percentage change = [(977 - 494) / 494] x 100
Subtract the new number by the original number
977 - 494 = 483
483 ÷ 494 = 0.9777327935222672
0.9777327935222672 x 100 = 97.77%