-65.7% is the change from 242 to 83
Calculation steps:
[( 83 - 242 ) ÷ 242] x 100 = -65.7%
Formula
Percentage change = [(83 - 242) / 242] x 100
Subtract the new number by the original number
83 - 242 = -159
-159 ÷ 242 = -0.6570247933884298
-0.6570247933884298 x 100 = -65.7%