117.11% is the change from 450 to 977
Calculation steps:
[( 977 - 450 ) ÷ 450] x 100 = 117.11%
Formula
Percentage change = [(977 - 450) / 450] x 100
Subtract the new number by the original number
977 - 450 = 527
527 ÷ 450 = 1.1711111111111112
1.1711111111111112 x 100 = 117.11%