1150% is the change from 42 to 525
Calculation steps:
[( 525 - 42 ) ÷ 42] x 100 = 1150%
Formula
Percentage change = [(525 - 42) / 42] x 100
Subtract the new number by the original number
525 - 42 = 483
483 ÷ 42 = 11.5
11.5 x 100 = 1150%
Example