256.02% is the change from 266 to 947
Calculation steps:
[( 947 - 266 ) ÷ 266] x 100 = 256.02%
Formula
Percentage change = [(947 - 266) / 266] x 100
Subtract the new number by the original number
947 - 266 = 681
681 ÷ 266 = 2.5601503759398496
2.5601503759398496 x 100 = 256.02%