-83.47% is the change from 611 to 101
Calculation steps:
[( 101 - 611 ) ÷ 611] x 100 = -83.47%
Formula
Percentage change = [(101 - 611) / 611] x 100
Subtract the new number by the original number
101 - 611 = -510
-510 ÷ 611 = -0.8346972176759411
-0.8346972176759411 x 100 = -83.47%