811.76% is the change from 68 to 620
Calculation steps:
[( 620 - 68 ) ÷ 68] x 100 = 811.76%
Formula
Percentage change = [(620 - 68) / 68] x 100
Subtract the new number by the original number
620 - 68 = 552
552 ÷ 68 = 8.117647058823529
8.117647058823529 x 100 = 811.76%