-15.05% is the change from 618 to 525
Calculation steps:
[( 525 - 618 ) ÷ 618] x 100 = -15.05%
Formula
Percentage change = [(525 - 618) / 618] x 100
Subtract the new number by the original number
525 - 618 = -93
-93 ÷ 618 = -0.15048543689320387
-0.15048543689320387 x 100 = -15.05%