350.23% is the change from 217 to 977
Calculation steps:
[( 977 - 217 ) ÷ 217] x 100 = 350.23%
Formula
Percentage change = [(977 - 217) / 217] x 100
Subtract the new number by the original number
977 - 217 = 760
760 ÷ 217 = 3.5023041474654377
3.5023041474654377 x 100 = 350.23%