186.6% is the change from 306 to 877
Calculation steps:
[( 877 - 306 ) ÷ 306] x 100 = 186.6%
Formula
Percentage change = [(877 - 306) / 306] x 100
Subtract the new number by the original number
877 - 306 = 571
571 ÷ 306 = 1.8660130718954249
1.8660130718954249 x 100 = 186.6%