275.49% is the change from 204 to 766
Calculation steps:
[( 766 - 204 ) ÷ 204] x 100 = 275.49%
Formula
Percentage change = [(766 - 204) / 204] x 100
Subtract the new number by the original number
766 - 204 = 562
562 ÷ 204 = 2.7549019607843137
2.7549019607843137 x 100 = 275.49%