-69.09% is the change from 537 to 166
Calculation steps:
[( 166 - 537 ) ÷ 537] x 100 = -69.09%
Formula
Percentage change = [(166 - 537) / 537] x 100
Subtract the new number by the original number
166 - 537 = -371
-371 ÷ 537 = -0.6908752327746741
-0.6908752327746741 x 100 = -69.09%