-60.85% is the change from 212 to 83
Calculation steps:
[( 83 - 212 ) ÷ 212] x 100 = -60.85%
Formula
Percentage change = [(83 - 212) / 212] x 100
Subtract the new number by the original number
83 - 212 = -129
-129 ÷ 212 = -0.6084905660377359
-0.6084905660377359 x 100 = -60.85%