870.91% is the change from 55 to 534
Calculation steps:
[( 534 - 55 ) ÷ 55] x 100 = 870.91%
Formula
Percentage change = [(534 - 55) / 55] x 100
Subtract the new number by the original number
534 - 55 = 479
479 ÷ 55 = 8.709090909090909
8.709090909090909 x 100 = 870.91%