47.14% is the change from 664 to 977
Calculation steps:
[( 977 - 664 ) ÷ 664] x 100 = 47.14%
Formula
Percentage change = [(977 - 664) / 664] x 100
Subtract the new number by the original number
977 - 664 = 313
313 ÷ 664 = 0.4713855421686747
0.4713855421686747 x 100 = 47.14%