75.72% is the change from 556 to 977
Calculation steps:
[( 977 - 556 ) ÷ 556] x 100 = 75.72%
Formula
Percentage change = [(977 - 556) / 556] x 100
Subtract the new number by the original number
977 - 556 = 421
421 ÷ 556 = 0.7571942446043165
0.7571942446043165 x 100 = 75.72%