287.7% is the change from 252 to 977
Calculation steps:
[( 977 - 252 ) ÷ 252] x 100 = 287.7%
Formula
Percentage change = [(977 - 252) / 252] x 100
Subtract the new number by the original number
977 - 252 = 725
725 ÷ 252 = 2.876984126984127
2.876984126984127 x 100 = 287.7%