177.7% is the change from 305 to 847
Calculation steps:
[( 847 - 305 ) ÷ 305] x 100 = 177.7%
Formula
Percentage change = [(847 - 305) / 305] x 100
Subtract the new number by the original number
847 - 305 = 542
542 ÷ 305 = 1.777049180327869
1.777049180327869 x 100 = 177.7%