-87.08% is the change from 542 to 70
Calculation steps:
[( 70 - 542 ) ÷ 542] x 100 = -87.08%
Formula
Percentage change = [(70 - 542) / 542] x 100
Subtract the new number by the original number
70 - 542 = -472
-472 ÷ 542 = -0.8708487084870848
-0.8708487084870848 x 100 = -87.08%